I believe they changed it because of the out cry and the fact that PS4 was seeing better sales. The kind of go hand in hand if you think about it. Right now the PS4 looks like the gamers choice as they feel Sony is listening to them (They're not). It's all a perceptions game with these types of things. Gamers want to feel like they have a say and a choice in the matter and right now Sony has that facade. Microsoft had it when they launched the 360 and dominated the PS3.

The restriction on the XBOX One in the end probably would not have been a major blow to the average gamer. I think people wanting to scream for screamings sake. I think Microsoft was trying to protect their studios and the studios of the developers that developed for the XB1. They figured it would be a major blow to Sony if MS could tell developers they would make more money off their games in the developed for the XB1 because people would buy more new over used copies. It back fired on them but I don't think it was as evil as people are trying to make it seem. They just wanted to protect themself and be able to contnue to produce games. There are so many studios folding these days because they can't make back the investment on the development of the games. I would imagine that used game sales probably was a factor in that somehow.

Well I will end my rant because I can go on forever.