You say the same is "not as nice as he was boasting." Did he make misleading statements regarding the condition of the game?
Either way, I think you made the right choice for you. If he misled you regarding the condition of the game, you had every right to walk away. If you accepted his price without him saying something to the effect of "shit isn't broken on the game," it's kind of a dick move on your part, but most any reasonable person would've done the same.