(I am an author of this game. I am not a shill, game is 100% free, there is no premium content, full game is avalaible without paying - this is work of passion and feedback is my main motivation)....
Here’s one: Trading cards are something you own. Skins are limited to a game you’re licensing.
Here’s another: trading cards are portable; they can be put in a collection for display, put in a safety deposit box, etc. When CS goes, all the skins go with it.
Another minor one: baseball cards are informational, the skins are cosmetic only.
Mind you, I think both are forms of unregulated gambling and trading cards as well as loot boxes should have better societal scrutiny, but they aren’t identical.
"Dominion of Darkness" - simulator of the Dark Lord/Lady (adeptus7.itch.io)
(I am an author of this game. I am not a shill, game is 100% free, there is no premium content, full game is avalaible without paying - this is work of passion and feedback is my main motivation)....
Valve Made $1 Billion From CS Cases Last Year, Data Claims - Insider Gaming (insider-gaming.com)