Pretty good deal. Saves ~$100 at some Colorado resorts. Could be useful for those of you going on ski vacations this Winter.
Not to thread crap, but pay close attention to the fine print and blackout dates - this is an annual promotion, and they typically black out d@mn near every popular date: spring break, 3-day weekends, etc. So yes, they can be a good deal for midweek and "off" weekend, but IME the 4-packs and such are a better deal overall. IIRC, the BOGO have to be done at the slope so it's a 100% full-priced ticket plus a freebie - you can't bring along a discount ticket from King Soopers or wherever and get a freebie to go with it.
I was all excited a couple years back when we were going to WP and it turned out I couldn't use the BOGO at all On the plus side, assuming you were gassing up at Shell at a competitive price anyway - you really don't lose anything by getting these, so there's little downside as long as you manage your expectations.
Richard