I think Sony is seeing, which one is popular and supporting that game which is profitable and doing well for them. I think the game was delayed due to problems it had, could have been a glitch or errors occurring when playing the game and required to get fixed. I think Sony wanted to deliver a product which functions well, and the consumer wants to buy it and spend the money. It was a good choice, as they could see what errors are happening and what needs to be fixed so it does not occur when buyers are playing the game.