Does anyone use menus?

Hello,
what do you think of menus importance for emacs/xemacs? How often do the 
people use menus, or commands are enough to make one happy? Would anyone 
complain if there were no menus at all?

I am developing an IDE supporting a number of external plug-in editors 
including emacs. I am about to use no menus for emacs plug-in, because 
of interference with IDE's own menu system. So I wonder if it would make 
any problems for emacs users.

I would appreciate any opinions/considerations on the subject
Thanks,
Dmitriy