Looks like the Nevele needs a little TLC, maybe a good follow up project for Mike @ Tenney?
Probably going the same way as Grossingers. The customers for the Jewish Alps are mostly dead or living in warmer climates.
Most of those places in the Catskills, including but not limited to, Grossinger's, the Nevele, Kutcher's, the Concord, etc. were hotel/resorts for which the skiing was a secondary amenity. The last few remnants of that culture are in places like the Woodstock Inn (Suicide Six) and Purity Resort (King Pine).
The "Jewish Alps scene" passed into history (as did their ski areas and golf courses) because of changes in American culture. PBS did a documentary on it that is well beyond the scope of a skiing history thread!