Thats not expensive actually- there are a couple as mentioned in another post being one, also google colorado ski resort shuttles, but there all going to cost about that. Its actually easier if you can rent a car (and even if your 18, you can rent a car without the surcharge with enterprise (google car rental college codes- they waive the under 25 fees), and dollar (google ticket attack consulting dollar rentacar code) and national.Consider though- to get up that way it takes a car 15 bucks or so in gas each way with I-70 being such a pain, so thats not too incredibly bad for a shuttle to go that far.
http://www.themountainsusa.com/Getting_H��thats expensive!! dang.
That s why the folks along the I-70 corridor wanted a monorail.