For me the biggest factor has been understanding how the hedonistic trap limited my options. It works like this: you start a new job with a nice big bump in salary. You buy a new car, go to fancier restaurants, take dates to "in places", move into a nicer apartment. With each increment of income, expenses increase. Pretty soon you are trapped in an awful job but the pay is too good and you have no savings. Getting of…
Yes, a bigger house with a bigger yard, a better car etc. would be nice.
...but I have everything I need that costs under 10k€. There are a few bits I could upgrade, but I'd have to pay a 50-100% premium for under 10% quality improvement, so not really worth it in my book.