Wow, that's a good idea, JPB.
I haven't seen that bumper sticker but I'm not surprised it's common in Florida.
I agree with Linkat's take. I think it's not wise for older people to spend like there's no tomorrow because you never know what tomorrow will bring, and I don't think "let my kids pay the bills" is a viable plan B. (If the kids want to, fine, I don't think that should be the assumption though.) If older people have a significant savings buffer, though, and they can afford it, I don't care if they buy the expensive car. I don't think people need to just scrape by so they can then leave a big inheritance.