I mean its not like their giving you new features or something. Charging $5 more for Halo 1 when you could buy a physical copy for $10 at Gamestop is just stupid and benefits no one. Give us something we don't already have.
And I don't completely buy the fact that its some complicated license issue thats holding up the rest of the games from being backwards enabled. PS2 managed to get 95% of PS1 games working. Microsoft is at about 50% right now after stating they were going to try to make every Xbox game compatible.