What did you miss out on?

It was about 9 years ago. I was in the middle of doing the V8 conversion on my Dart. there was an ad for a 70 challenger /6 with a 3 speed on the floor. Said it needed restored. Went to look at it. It was rough, but not too bad. Also came with a shell with good 1/4 panels. The price was $650 for both. Wasn't too sure if I could of swung it at the time. so i passed it up. Sad part, I would oif been able to do it and still got my Dart done.