I just upgraded my wedding ring after 15 years. It's still pretty understated. I wear a nice watch though and that's all the jewelry I wear.
My house is almost paid, I drive a paid for car and don't spend a lot of money on frivolous things.
I'm essentially cheap which is why I like mystery shopping :-) more money into the retirement account for me.
I always get asked why I Mystery Shop even though I make very good money on my day job and it's because I enjoy the interactions and appreciate what a good mystery shopper can do for business. I also like getting stuff that I would buy anyway for a discount.
I'm in the seven figure club also and you would never know it.