promotion gets progressively harder the further up the org chart you go. There's just fewer and fewer slots and better and better people trying to get them.

I'm at a level now where the next level up just looks miserable. The people I know one level up are the most intelligent productive people I know but almost every single one of them has some bizarre unexplained health issue likely related to stress. The things my boss, her boss, and their peers are able to accomplish is amazing to me but, man, i just don't think that level of suffering is worth the increase in pay.