I hear ya', but problems within three years is at least an indicator of what to avoid.
I buy only new, BUT.... I keep them forever. I just like knowing how any vehicle I have has been treated.
Being a mechanic has its benefits.
I’ve scored quite a few vehicles that needed minor tlc and repairs due to ignorance of the seller that just didn’t know how to fix issues and didn’t trust a shop to treat them honestly.
The last used vehicle I bought had a terribly worn front wheel bearing hub assembly and the owner thought the whole drivetrain was coming apart and sold it cheap.
$109.00 later it was good as new.
I’ve had it so
long I just replaced it again two weeks ago.