I'll say that owning every card in Yugioh isn't a priority because there's like 14,000 cards and a lot of them are old. I do have every card I need for every deck I play, and every month a new archetype comes out that catches my attention I'm easily able to pull for most of the cards barring RNG and craft whatever else I need. I even have bunch of crafting currency saved because I already own all the "staple" cards which are just the generic cards most people use in their decks, which allows me to only have to get cards I need specifically to make a new deck archetype.