think about us ageing gamers, we don't have the same reflex as before and not as much time to play..
in metroid prime i didn't beat the last boss, in MP2 i stopped with the boss where you morph into the ball .. and worse the last savepoint is far from these bosses.
PoP there is there is the elevator stage where we are attacked.. i finished stopped playing this game too.
when its too difficult it ends in frustration, I won't replay a level dozens of times, I want to relax from my work when I play, not stress myself too much..
i have to be able to play for short sessions, and these can be interrupted, this mean i don't want 30 minutes b/w two savepoints
gamers are ageing, when doing so they are becoming a different audience with differents needs, please don't forget us.