You think the prices on certain used cars is through the roof,try pricing diesel pu's.
I could easily sell my 06 GMC 3/4 ton 4x4 extended cab pu for 50 percent more than I paid for it 6 years ago. It was the last year before smog devices were mandatory on them,and it doesn't need the additive you have to run in the new diesels or they quit running.
It has 365 hp and 665 ft lbs of torque. If it were possible,I would almost want to be buried in it. Love,love,LOVE that thing!
I just sold my 2016 Chevy Silverado gasoline powered half-ton crew cab 4x4 for about 4 grand less than I paid for it new,and it has 48k miles on it. Truth to tell,I could have gotten a grand or two more than I paid for it,but I sold it to my ex's sister,who is and has been one of my best friends for 40+ years. She needed a good truck more than I needed the money,so she got it.
Don't weep for me,though. I also got rid of a big truck payment when I sold it. Other than my credit cards that I pay off each month,I am now debt-free. No house payment,no car/truck payment. House has been paid off for years,and is going to remain paid off until the day I die.
Even better,for all practical purposes,there is nothing material in life that I want that I don't already have.