It was possible to get everything but lets not overlook the inherently manipulative framing of either paying or making the game a second job, which cultivates a sunk cost mindset, which might once again make the player pay out of FOMO.

There are reasonable amounts of grind that can make games fun for some people, but the length of grind and the limited timeframes for obtaining items are all geared to feed into the same monetization cycle. All of that artificially, because it's not like any digital game has to clear their storeroom and shelves to make space for new collectibles.

Game companies have been very sly about how they use physical real world metaphors to create justifications for their manipulative systems. Lootboxes too, because you can't guess what's in a closed pack... except the game keeps perfect track of what is available, what you have and what you don't have. The only reason why anyone would get repeated lootbox items, is to lead them on and get them to waste money.