There really is no excuse to miss a convention. I've only missed 2 since 2001. I think the only person who has me beat is Torry at this point. I've even been to 3 conventions unemployed. I met my wife at a convention. I've met life long friends at the convention. These are still guys I talk to on a daily basis.
Every year I'm always reminded about how much fun it is to hang out with everyone.