As long as you have the physical copy, you have access to the game. If the developer or publisher decides to pull the digital distribution, if you don't have it downloaded and never deleted, you're assed out. For the one and done people this may not be an issue, but for people who revisit games, that's a sticking point.
Yeah I went back bought most of the Xbox 360 backward compatible games. Most of them beside call of duty’s were $4.