Nathan Fillion to appear exclusively at 2007 Serenity Salute Convention

OK, I just got an e-mail from Creation about thier con that says the following :

"Special Note : Nathan Fillion will be appearing at The Creation Entertainment Salute to Serenity/Firefly Convention in Burbank on Sunday, October 28th. Despite promotional materials that have appeared and continue to appear on other event sites this will be Nathan’s only fan event in the Los Angeles area from now until at least December."

This worries me a bit.