the intentional game design is to make the dopamine drip so thin and anemic that players are motivated to go to the cash shop for a nice big dopamine hit this also motivates the suits to push anything truly rewarding ONLY into the cash shop this is also why, when a live service is declining, the suits always mega amp up the grind systems. they know it will chase some players away, sometimes a LOT of players, but all they care about is increasing cash shop revenue and stripmining the left over players most players don't buy much on the cash shop, however the true addicts that keep playing on crazy grindy systems tend to spend more as they are truly addicted to the dopamine and aren't getting it in the game