Wow. Good topic, I read the whole thing. I actually brought up this identical question on a different forum recently, but I worded it in a much different way. Try reading this, the replies bring up some really good points:
http://scuforum.co.uk/viewtopic.php?t=1002
Anyway, because of emulators, I will probably never plug in my NES or SNES again, or even my GBA. I can't even play my favorite NES game, Boulder Dash, any more without trying to perform TAS tricks in real time.
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I consider save states to be security from bad luck, which I have come to hate in games. Why fight a final boss who keeps casting KillAll (and having it work!) or voiding your support spells, when you can simply manipulate him not to do so? Why get all the way to the end of the Pachisi track just to fall into a trapdoor and have to start all over again, when you can
manipulate all the dice rolls? Why wander around aimlessly for hours leveling up when you can manipulate the metabbles to never run away?
I play games for fun. Sometimes, taking the bad luck, tedium, and possibilities of horrid failure out of a game is just more fun.