I'm sure if they still do, but at one point Stowe offered such a guarantee. Several years ago I didn't have a pass there and spent $75 or whatever it was at the time for a day ticket. It was probably the only time I've ever seen Burlington get snow and Stowe got freezing rain, complete inversion. I scraped my way down a frozen solid Lord and got a voucher for another day. Today, I would have probably toughed it out. At the time, $75 was a lot more money to me and I wasn't skiing that much that winter so I wanted it to be a good day.