I found out last week that a good friend of mine from Atlanta is going to Chicago the very same weekend, so we were going to book the same flight. That way, we could hang out together in Chi-town Friday afternoon until it was time to go to our respective functions. I told her I needed to check here and make sure that I still had a reason for going, but she wants to go ahead and book the flight now.
Honestly, Chicago is probably my favorite of all the cities that I've ever visited. Even if nobody shows up, I can find plenty to do on my own (I've been craving that deep dish pizza for far too long). But if I have two super-cool St. Louisans joining me, well then that will make it all the better. And, like you said, there's always the chance for last-minute folks.
Basically what I'm saying is that I wouldn't feel that I wasted my time or money by taking this trip. If you're game, so am I.
Sincerely,
Zip
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If it wasn't for bad luck I wouldn't have no luck at all. D'OH!