I feel the same way, for me getting a piece of armor or weapon that makes things almost a breeze is a reward, and for me, takes zero fun away from the experience of playing. I always found it rather dumb how in some RPGs, (at least ones that allow you to keep playing after you beat the game), you get the best weapons and equipment after you've already beaten the game. (Even in RPGs where you don't get to continue after beating the game, this is applicable). By then, even if you can keep playing, you just bested the most powerful enemies without the armor or weapon...so why have it by then when it's arguably useless to you? And in games like vanilla New Vegas, why the hell give unique armor and Weapons (Lanius' helmet and weapon for example) when you can't use it? At this point, you have MAYBE two minutes of gameplay left. The weapon or armor is entirely useless to you at this point. I don't see a problem keeping power armor in the games, and I don't think it takes away any of the fun. Make it hell to find, even make it hell to get working properly as some have suggested, but if players are willing to take the time and effort to get it, reward them with something that totally kicks ass and makes the rest of the game a lot easier.