I worked in an office with 30 or so women. Someone was always having a "party" for something. I had a standard answer- "I don;t do parties". As the previous poster says, they finally stop asking because they want people there who will spend money. In 15 years I never went to one. Your problem is you started going and now you have to reverse your position. I would say, "we are reordering our priorities-no spending any extra money- thanks but no". On the third try, the hostess will get it and take you off the list.
