I've got Illustrator too, I never use it though. Xara does everything I need much easier, faster, and less memory consuming then Illustrator.

Not just maps though, I use Xara to do all my professional page layout for my print/PDF products. I use Xara for all my illustrations. Then in my day job (graphic design studio) I use Xara for pretty much everything - from sign design, web graphics design, logo design - really everything.