This is... a slightly less usual source, but probably one of the more public statements from someone actually directly related to games.
Source: http://www.nowgamer.com/news/1897054/next_xbox_will_not_be_compatible_with_second_hand.htmlNowGamer said:...
The latest suggestion that the Xbox 720 will require an internet connection to play and will not play second hand games comes from David Connolly, managing director at Xing Interactive.
We spoke to Connolly about the the decline of physical retail, and asked how next-gen could affect this already problematic market.
"We hear different things from the two big players," Connolly told us in an interview. "Sony are actively asking for more retailers past, present and new to help them support their next PS launch."
Connolly suggests that Sony is being far more open with its approach to the PS4 than Microsoft, who is not looking to accept a wider retailer market if at all possible.
"I have spoken to sources close to Microsoft on the other hand who insist that the next Xbox will not be compatible with second hand, will require permanently on connection, and 'youll have to go through Microsoft to do anything'."
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