So in 2025, if in the market, you'd be shopping for 20 year old vehicles? You are how old, 18? So by the time you are 30 you'll be shopping for vehicles almost the same age as yourself, unless you just plan on doing "minor" repairs like a whole new engine, trans, diff...etc on whatever you own at that point, assuming the body hasn't rotted off of it. I think you'll find that a powertrain overhaul does in fact cost thousands of dollars. Parts will become hard to find, you'll end up with Dorman and other subpar aftermarket garbage that fails in short order.
You are in for a party.