I said this in the Hunter conditions thread and I'll say it here again:
When a resort is getting a majority of their ticket revenue (and skier visits) from passes purchased before the season started, then there is little incentive to go above and beyond to provide an excellent ski experience, and a large incentive to cut costs and attempt to nickel and dime guests.
We've seen this at all of the Northeast Vail resorts, where snowmaking has been limited, staffing levels reduced, lift hours cut, and more cost cutting measures. We've seen nickel and diming in the form of charging for parking at Mount Snow and Stowe, and in the form of eliminating all free options for bag storage at Hunter.
Of course if you take things too far, then you'll lose pass sales, but most people who buy passes are somewhat of a captive audience. They are bounded by location, and there might not be a different pass in the region that has the access they want or need.
I'm going to assume that the typical passholder takes mostly day trips to their home mountain, but does 2-3 overnights at a different eastern resort, and one trip out west. Let's analyze their options in The Catskills:
You can buy the Epic Pass and get unlimited access at Hunter, plus unlimited access to dozens of resorts all over the country. You can easily ski the entire season on just one pass.
Windham is an Ikon partner, but you can't ski a whole season on just 5-7 days. To get unlimited access, you will need to buy Windham's own pass, which is well over 1000 dollars. That Pass doesn't get you any reciprocal benefits, so you will need to upgrade to the top tier pass to get Ikon included. This would cost 2-3 times as much as the Epic Pass.
Then there's Belleayre. ORDA's Ski 3 Pass covers both day trips to Belleayre and overnights to Gore or Whiteface, but has limited reciprocal benefits, and no access or even discounts out west. You would need to buy two passes, or buy expensive day tickets for your western trip.
Plattekill's pass costs as much or more than the Epic Pass, but it's for a mountain that has a short season, is only open 3 days a week, and the pass has little or no reciprocal benefits. Any other trips would require a separate pass or day tickets.
I think you can understand why people are willing to put up with a lot and still buy mega passes.