How many times has a parts car become a builder

Both my boy's car should have been parts cars. Jacob's 65 B'cuda was $400 13 years ago and needed more work than it should have. And here I am with his little brother's 73 Dart Sport that was $400 and needs a lot more than it appeared to need on that winter morning 2 years ago.... LOL. Same deal with the 69 Fury ragtop I built and drove for 17 years, except the original owner's son gave it to me because it was so bad.