Richard,
Flights are cheap! Just convince her that it would be cheaper for just you to go. The flights are cheap right now. Well...they were when I made my reservations!
It's only a freakin' weekend out of the freakin' year! (Don't use that tone though!) LOL!
She'll be bored out her mind anyway. It's going to be fish and fish and people who keep fish who talk about fish who talk about keeping fish, buying fish, photographing fish, breeding fish and fish clubs and fish slated vendors, oh, and fish, fish, fish, fish, fish , and fish stuff. She won't be happy...consequently, neither will you if she decides to come along....LOL![/b]