I even went as far as winning an auction, and when it arrived I was amazed to see a huge bulge on the surface of the card. Not on indentation from behind that popped to the front, but a thick bump on the surface of the card. The seller had listed this card as mint when I bid on it and when it arrived it was anything but. I complained and they refunded my money and I was out the cost to ship it back. So I stopped looking for a while.
Then a couple months later I started up again and I found this card here:
74-75 Topps Denis Potvin Rookie
Mint condition? No, but certainly EX or higher. Under 5 bucks? Yep, 4.99 with shipping and I was able to add another card I needed to it and it ended up being an even better deal bundled. I don't think I will chase the Topps version of this set, with many cool rookies being in the higher numbers of the OPC release. But until that day arrives, I have a very respectable Potvin rookie to enjoy until then.