It's Almost Impossible To Find A Decent Used Car Under $20,000

Vehicles under $15k are 1.6% of the market, and their share of the market has dropped over 90% since 2019. The old advice that you can get a beater and drive it in to the ground for $5k hasn't been true for years but it still seems pervasive in personal finance spaces.

https://jalopnik.com/its-almost-impossible-to-find-a-used-car-under-20k-1850716944

It's Almost Impossible To Find A Decent Used Car Under $20,000

Sub-$20,000 cars comprise about 12 percent of the market today compared to almost 50 percent in 2019

Jalopnik
I bought a new car in 2017 for 19K. It's now worth 21K, after 50K miles.
They definitely shouldn’t have flipped out at you about it, but they weren’t really wrong. Vehicles almost never appreciate in value; it just so happened that you accidentally timed the used car market perfectly.