Some interesting information was gathered during a recent conversation.
During a conversation with a writer for Eurogamer and Yoshida, it was announced from the Sony executive that the PlayStation 4 will play used games. The answer was given during an exchange between Yoshida and a Sony Japan PR representative seeking who was seeking clarification on the question.
I don’t know about you but this is a safe bet that the Rumor if used games being unplayable can be diminished at least in Sony’s console.
Your move Microsoft.