Some cars do hold sentimental value, for whatever reason. My 93 RX7 is in the process of a ground up overhaul. I have tried to sell it twice, was offered what I wanted for it but when it came down to it I could not sell it. To make it the way I want will take about 15k. Don't care if will ever be a collector car just can't sell it. So I understand your issue. If you have the space and don't need the money I would just hold on to them.

Jim