When I ordered my Sport in August, I saw an ad for a 2020 Willys with 6K miles from a dealer about an hour from me in Central WI.
To order a 2021 with the same options, the MSRP would have been $37,500... the dealer was asking, and got $43,500 for the used 2020.
I'm not sure how things are in other part of the country. The bigger dealers in Wisconsin have full lots, the smaller dealers are very thin. The dealers in Northern IL (Chicago suburbs) seem pretty full as well.
Manufactures have been building as much of everything as possible. Things will balance out this year for sure. Let inflation , gas prices and interest rates do their magic. Doubt there’s going to be lines around the block paying 10K ADM in a year for anything gas powered.