Clois:
Same thing happens to me and all I have is a 65 Mustang Fastback (painted to look like a GT 350),been driving mine since 1995 and I really think I enjoy it more now than before.......
At least once a year someone comes by to make an offer on the car, I always tell them it's "Not For Sale"........one guy told me,"everything is for sale", and asked what it would take to buy it, I thought for a while and gave him the price that it would take for me to part with my car,which was about double the actual value at the time, he looked at me real funny and said,"you don't want to sell it then"!!!!!!!! I said, "that's what I've been telling you all along"........
BTW: years ago I had one elderly lady tell me that was the purtiest Corvette she had seen in a long time.....
David