10:57 p.m. on January 17, 2013 (EST)
I echo Otto’s response, in that your intended use will determine appropriate feedback. In addition to lift serviced resorts and flat cross country, I would add steep backcountry as another category. And that covers terrain categories. Within the backcountry category you have further break outs: are you skiing principally powder and light snow, heavy wetter snow, late season corn snow, etc? Do you want a ski better suited for hauling a pack or dragging a pug (sled), or a performance ski for the control and down hill fun? Lastly the term backcountry alpine is nebulous; two primary categories of backcountry skiing are skis equipped with bindings that do not lock the heel down (free heel) and skis with bindings that do (fixed heel).
Free heel skis are often called cross country, Nordic, or telemark skis. These terms are somewhat vague, especially since all free heel skis are considered cross country skis. But in the context of your question, let’s agree to call cross county and Nordic skis the ones that are best suited for gliding along on flat land, such as meadows, while the telemark skis are designed to permit more control while going downhill, thus better suited for hilly and even steep terrain. Your remarks make be assume you are considering telemark skis. Of these there are two subcategories based on the binding system: Three pin bindings where the boot is attached to the ski by a pincher clamp that grabs the toe of the boot, and cable bindings, where the toe fits into a pocket on the binding and held there by a cable that runs from one side of the pocket around the back of the boot and back to the other side of the pocket, keeping the toe from pulling out of the pocket. The three pin binding is lighter, while the cable binding is considered to offer better control of the ski.
While some folks use alpine skis and bindings to ski in the back country, most folks using fixed heel skis are using randonee skis. Randonee skis may consist of a standard alpine ski or a lighter telemark ski. It is the binding that signifies a randonee ski. This binding is a lighter version of the standard alpine binding, and features the ability to lock the heel down for control on down hill runs, but permits unlocking the heel for more efficient shuffling along on the flats and more comfort while ascending inclines. Randonee skis offer more control on downhill runs than telemark skis, but are heavier, especially since they use alpine style ski boots.
Personally I prefer the three pin, free heel, telemark ski. It is the lightest of these technologies, thus less fatiguing. I prefer lightweight boots and skis over the heavier telemark equipment which is designed primarily for lift serviced slopes. I can ski practically anything I want with this ski, including some double diamond runs. But admittedly I am technically a pretty good skier. If you have so so technical skills you may be more comfortable on randonee skis.
While telemark boots are easier to get around in, I don’t find any of the current alpine or telemark ski boots particularly comfortable for walking distances. I happen to own an old pair of low-rise Scarpa double boots designed for ski touring, however, that are by far the most comfortable boot – more so than even hiking boots - I have ever worn. Alas if I did not have my low-rise Scarpas, I would bring some light weight hiking boots along if the trip entailed a long approach on foot to the snow, or significant walking elsewhere along the journey.
I do not know how to answer your comment about your old equipment. How old do you mean (I date from the age of leather alpine boots)? The cheapest way to acquire gear is buying used demos or second hand. Ski resort towns can have smoking deals on such equipment in the thrift shops, or ski shops dumping last year’s inventory. You can also try various ski oriented web sites EBay, etc.
The best way to select gear is to rent first. Since back country ski gear can cost big bucks I think it is worth while to dedicate a vacation for this purpose, and travel to a ski resort, such as Park City where a good variety such equipment is sold and rented, and capable instruction is available for hire (if you want lessons). The draw back to this approach is you are evaluating the equipment on snow conditions of that locale, which in my case seldom resembles the Sierras and local mountains of So Cal, where I do most of my skiing. I personally would steer clear of “waxless” skis. These skis have a textured bottom designed to grip the snow. I find it is not a very effective system, makes a weird buzzing noise when gliding along the snow, and the ski seems to not perform downhill as well as smooth bottomed skis. Instead I prefer to use climbing skins for up hill traction. Skins are quieter, afford way more traction, and they are cheaper to replace when worn out than new skis. Regardless how you go about your purchasing activities, I would first read several books on gear and technique before spending additional energy and effort on this endeavor.
Lastly you ask about the benefits of one type of ski over another. I have already mentioned the weight and performance advantages of each type of equipment. Others will cite alpine style skiing as easier to learn that telemark skiing. I think that explanation is overly simplistic. For example, a rank beginner with two left feet can have a great time shuffling along the flats on cross country skis with next to no instruction or practice, while it would take most people a lesson and the better part of a day before they could alpine ski a beginner’s level run without falling several times on the way down. Alpine skis, however, are more forgiving to poor technique, so low intermediate levels of capability are easier to achieve on alpine skis. But to ski safely in hilly back country terrain you will require more than low intermediate skills. At that point I think it is a wash; progressing beyond low intermediate skills on alpine skis is about as easy/difficult as becoming a more skilled telemark skier. That said, expert level telemark skills are more difficult to master than expert alpine skills, as advanced telemark skills include all the turning techniques of advance alpine skiing, plus some techniques only possible on telemark skis. But few people reach this level of skill on either type of ski, so that is a moot issue for the most part.
PS: nice avatar!
Ed