But without paying u will never get the best cards and best team.
And without paying for the game u can't play online at least in most games.
Besides paying for a skin in cs u can always make more with it cuz we have betting and gambling sites. I made 300e when i sold all, my skins, all i have now is 5e skins at max. For a 3e game from 5 years ago thats a big difference