What could be added that help rich sims spend their fortunes?

Private planes, helicopters, yachts, movie memorabilia, artifacts, in the Sims 3 you could buy out a town and collect rent/tax, expensive restaurants, designer clothing/shoes, research for diseases/cures, priceless art, security guards for celebrities, indoor skydiving, indoor scuba diving, manicure/pedicure/massages, liposuction, face lifts/botox, tanning, designer hand bags, expensive jewerly...