Not me! I've never seen a 25 room house and would love to have the opportunity. WOW!
Right off the bat, I don't think they would have invited you had they not wanted you to come. Then...how many people could they list among their *friends* - lifestyle or otherwise - if the criteria was that the friends had to have similar or equal living arrangements? Not many, I suspect.
Class has nothing to do with money, IMHO. It has to do with attitude and demeanor. That's my take. If they invite you to another party later and you want to go...GO. And hold your head up just as high as you would if you had won the lottery.
- EBF