Nomen Nescio writes:

Did you ever read "The Millionaire Next Door"?

Yes, and what struck me about these millionaires is that most of them had
become that way only because they had spent their entire lives not spending
money. Obviously if you never spend anything you can build up quite a bit of
cash. I don't see the advantage to having a million in the bank and still
living like trailer trash, though.

Additionally, a million dollars really isn't significant these days.