Illustrator's graph tool sucks. It's like a remnant from the early 90s
Whaaaat? me thinks you need to check out more about illy's graphs.... namely Graph Design (replacing say a bar with more or fewer 'apples,people, whatever') also if you save graphic styles modifying a graph again and again is quick and easy...
Illustrator's graph tool hasn't been worked on since 1996.
what i'm saying is one can create very compelling live graphs (thanks to symbols) and with a little effort the sky's the limit on err dead ones (thanks to graphic styles).