Was the 800XL the top model?
I was under the impression that it was. There was a 1200XL which was physically larger, but didn't have BASIC built in(?)
edit: I got curious and checked Wikipedia, apparently the 800XL was newer than the 1200XL, and there were also the 1400XL and 1450XLD which seemed to be the "top end."
...and the 1600XL! Dual processor!
...I really hate Ataris.