Okay. I understand. A few of the insert sets I've collected over the years are indeed super tough. For example I liked the 1996-97 Skybox
Metal Universe Hockey cards so much that I decided to collect all the insert sets as well in the Super Powers(refractor) variant. Well when it came to the Armor Plate (goalies) Super Power cards, there was only one inserted in every 720 packs. But I got those done some ten years ago!
I also keep an open mind when it comes to collecting cool cards particularly if they're not expensive. For example, just this morning I received a 1963 CFL coin I'd bought on Ebay from a dealer in Sherbrooke, Québec. He included eight of these 2021-22 Upper Deck
Credentials cards as padding in the envelope:

(Not mine.)
But I really like them! The player really pops against the simple white background. They're keepers. So I guess I'm collecting them as well now.