My cats have all been relatively healthy, but they don't get along, one sprays, one is a real scratching-fiend, two are food snobs, one is good-obsessed (so obviously they all have to be fed separate), and on and on, and oh.....it's the good
kitty that has the only expensive health problem. I don't know-----I don't think there are any perfect cats (like people, I suppose) but I don't suppose I'd want to trade them away, either.
I think cats are experts at keeping us bouncing from one extreme emotion to the other. Perhaps they do it because they find it entertaining.