Would you pay $25,000/year for a gym membership?
Personally, No! But I’m probably not the clientele they’re after. The places where they’re listed will cater more to the celebrity, executive, sports figure. These are the same people who spend over $2000 a night for a hotel room. They want the privacy and catering and they don’t want to be watched by prying eyes.
So while I myself wouldn’t pay that for a gym membership, there are some who may for the privacy and personal attention.