These were the first CFL cards I ever owned. Besides a ton of cards from the 1991 JOGO CFL set (which I'm currently adding some scans for this site), they are the only CFL cards I own. They also happen to be among the cheapest and most common CFL cards, so that makes sense. I've been growing greatly interested in the CFL over the past 3 seasons, so I'll definitely get more CFL cards in the future.
I think when I bought a box of the 1991 All-World packs, I was only missing 1 card. It was Doug Flutie, which is worth about as much as the whole set. I ended up finding it in another box of random cards.