CP/M on the Atari would have been a potential game changer if they had offered a Z80 card for the 800 and an 80 column video card.
Most if not all CP/M software is designed for 80 column screens. Business software of course, but games such as Adventure and Zork also look better on 80 column screens.
Atari didn't make an 80 column video device until very late in the game.
Also, it's very nice to have a hard drive for CP/M programs that are I/O intensive. Atari missed the ball again.
If Atari had only created a "Business Sales Division" or something like that, they could have done it. Researched what businesses want in a computer and given it to them.
Oh well, wishful thinking.......