Well, I'm a newbie at this collecting hobby. I currenty have a 70 Challenger RT/SE that we just finished restoring. Bought it for $4,400 and now it's worth upwards of $40,000. Did pretty good on that one. The other car we just bought my daughter is a 74 Duster. We paid $1300 for it. When it's done, I estimate it being worth maybe $8,000.... still not bad. But of course...we won't be selling them at all.