why do some roulette wheels need way more replacements

i’ve noticed some roulette wheels get swapped out a lot more than others at certain places. like i get that parts wear down but shouldn’t every table get roughly the same amount of action over time? or is there something that makes certain wheels need fixing or replacing more? it doesn’t really line up with how blackjack tables get rotated and felt changed, those seem more consistent.

maybe it’s just older wheels having quirks or they’re watching for bias or something. sometimes i see more chips stuck near the wheel, or the dealers seem annoyed about one wheel over another. wondering if there’s a secret reason behind all the maintenance or if it’s just random. anyone noticed the same pattern or figured out why some wheels just can’t stay in play?