The Express card is the only real discount you'll find. It's less ($89?) if you ordered it before 10/31. Slightly faster breakeven, but not an option at this point. With the Express card, you also get to ski non-holiday Thursdays for $15. If you can do that a few times, it quickly pays for itself. They have some reasonable ski&stay packages, especially early & late season & mid-week. If your friends ordered season passes at Stratton online, they would have gotten a 50% off coupon that can be used any non-holiday weekday, I believe.
Like most places, especially out East, you can't expect to get much of a deal on weekends & holidays. Stratton's single-day ticket price just makes it worse. If you're going to be up there more than 5 times, just get the Express Card. Less of a hassle, and it'll save you some money if you go often enough.