All the hate on DU and CU is pointless. They obviously have no idea what they're talking about. I go to DU and love it. If you're proactive wiht getting your work done, you'll have way more than enough time to ski, party or w/e else floats your boat. I've almost got 50 days of skiing and will be skiing until school gets out here in early June at A Basin and the backcountry. If you leave early enough, even on the weekends, you can get to A Basin in about an hour 10 min., keystone another 15-20 minutes from there, and breck another 15-20 minutes from there. Vail is pretty far to get to but if you leave early enough you can make it in about two hours give or take a few.
CU was too big for me (just personal preference) and similar price for out of states as DU turned out to be for me coming from California.