Old G/C boat price's have gone up in the last year, could be covid or the price of new boats.
There a really nice C500 out west for $3000 that's been for sale for months and a CV19SS for $40,000 that comes up on eBay every other week.
Boats that go for Jeff's guess of $8000 to $12,000 seem to go reasonable fast.
I added a 250 HP motor, XL package and trailer to a 2022 GX195 and it came to over $53,000 before tax and set up .. OUCH !