That's not a response... it barely addresses anything. It's a sales pitch, a tagline.
MS knows their hardware sucks, and they know gamers are too spolied to protest their machine when it has great games on it, so they can get away with it. End of story.
Sure hey have a 3 year warranty now, big whoop. After 3 years you know your machine will die, and you know there is nothing you can do about it.
In 15 years when someone wants to play some old 360 game they will need a million dollars to buy one of the last working 360 machines in existence, and it will probably die right after they get it in the mail.