Yes, it is a major bitch that my character's constitution is so low that eight hours of marching leaves him so weak that he can no longer lift his quarterstaff, much less gather together the magical forces necessary to sweep his enemies aside - but I want my weakness, I want to have it to bitch about, to torture the other party members with, to insist again that we have got to stop and rest because my feet hurt! I'm not interested in running a perfect being. Powers are not the whole game - flaws must count at equal value!
Amen to that.
My DMs think I'm weird because I get all excited when terrible things happen to my character. And maybe I am weird. Sure, I like success as the next gal, but you know what? Getting captured or attacked by slaadi or brainwashed or whatever, it's something to play with. It's fun. Even if it's because my character sucks, it means that the game is focused on my character. When my character gets charmed, or ends up stumbling around exhausted because she hasn't slept in over twenty-four hours, it's something to play off of, to respond to, to deal with.
That's really what I care about. Not success or failure, but getting to play.