One word of caution if you're considering a major purchase in the USVI. KNOW your prices at home before you start shopping. I believe there are still some good deals to be had, but if you're not informed, you could still end up with less than you bargained for. ..... and speaking of bargaining... ALWAYS do. The asking price is never what you want to end up paying.
Yes, shopping in St. Thomas is very good, but our experiences over the past few years seems to be that St. Martin has as good, if not better, prices on most items!! Kuki is right, though. Know the prices from home before you go !!