For those of you that have not "heard" of private shuttles going up and down the canyons, you should probably use your eyes next time instead of your ears, and you will end up "seeing" them almost every day.
As far as hostels go, I am always sketch to live in a spot like that, some people don't feel the same way as I do, but seems more like a hassle than fun to me. If they do indeed provide free lift tickets to ski resorts then it sounds like a bargain, if not, then I would advise booking a hotel at a ski resort. If you do it right it will be about as much as a lift ticker per night, but you will get a free lift ticket (sometimes 2) for every night you stay. With that you can either ski at the resort, or sell your day ticket and go somewhere else. For example, Snowbird does an early week special that is $99 a night including a lift ticket, A day pass there is $74, so you really get to stay there for $25 a night. Then if you wanted to you could go down to the parking lot in the morning, sell your day pass for $65, head next door to Alta and buy a day pass for $69, or take the ski bus down the canyon and up Big Cottonwood Canyon and ski at Brighton or Solitude.