There is no reason to pay full in either area. Montana will range from $50 to $80 from what I've experienced. Colorado Ranges from $30 on up. Every gas station around ski resorts has coupons for resorts if you fill up there. There are always deals. Just ask the locals. You can always buy comp tickets from hotle staff. They get them all the time, but they have season passes so they sell the comp's cheap.
I'll be Boarding in Colorado this weekend and most of the Christmas break.
