Not snobbish to want an upscale experience. There are many upscale RV resorts that cater primarily to Class A's. They charge a premium price for a premium experience. Those who don't care to or can't afford these places don't have to have an inferiority complex about it, but neither do those who prefer this type of place.
Some outstanding examples are:
Hearthside Grove, Petoskey, MI
Traverse Bay, Traverse City, MI
River Bend, Alva, FL
Pelican Lake, Naples, FL
Outdoor Resorts, St. Lucie West, FL
River Ranch, Frostproof, FL
Lazy Days RV Park, Seffner, FL
The Great Outdoors, Titusville, FL
Motorcoach Country Club, Indio, CA
Outdoor Resorts, Indio, CA
I am sure there are many others and I look forward to reading here about them.