Just gotta be smart enough to not buy an old game that requires the disc in the drive.
I didn't know that games didn't need that anymore, I don't game. With huge internal HDs, and the massive amount of data the newer games probably demand on call, it makes sense that they would store the data on the HD. I used to recommend running with a disc image mounted if the game let it instead of burning up the optical drive.
Besides, who are we to try and second guess a man with a company that has 65 billion in the bank.