What does gvim have to do with the mouse? Regular console vim supports the mouse, and there are perfectly good reasons to use gvim without it (e.g., better color support, "Edit with Vim" in Windows).
Point taken re: console support. I was thinking about the menu bars, too. Many users probably have them turned off, though.
Yeah, nothing's wrong with gvim after you throw 'set guioptions-=bmrt' and a colorscheme line into your .vimrc.