I think Microsoft talked about this in the past. They said the amount of time and $$ spent to add backwards compatibility into the 360 for the original xbox didn't make sense, since only 5% of 360 owners ever used it.
I think I used it for about 6 games, since I didn't own the original Xbox and it was buggy as all hell. Trying to play Fable on it was a mess of load times, or was it always like that?








