If it works for you mate, good on ya (beer)
Hard to give a straight answer on this since I've never been rich. Sure, I'd like to say I wouldn't spend money on rediculous shit but who knows? I might develop a taste for caviar and champagne if I hit the lotto. Right now I try to keep the spending in check for most items. I won't buy designer clothes or fancy cell phones. However, I did buy a new truck when a used one would have done just fine and I've sank money into a boat that I could have used in a more responsible manner. I think it's human nature to spoil yourself once in a while as long as you're not going bankrupt doing so.
So I went to the club tonight wearing my flip flops and ended up in a threesome with a Jennifer Aniston look-alike and an Angelina Jolie look-alike.
It was average at best.