That's unfortunate. You guys should at least check out SPX for one day as guests, if you've never been. Me and my fiancee did a half table last year and had an absolute blast. Easily my most favorite convention I've been to. Doing a full table this year (half table is wayyyyy too cramped and they only give you one chair, like you're not gonna have someone with you.) and premiering the first book for the comic we do together. Long story short, I met her through her webcomic, we're in luvvvvvvvv, we started a series together, we decided to do an offline only spinoff series with the two characters going on weird mystery adventures.
That aside, it's the only convention I can honestly say we bought a LOT of original comics at. Other cons, it's like 10% comics, of which only 1% are good, and 90% vendors. This is 100% comics and 85% were fucking AWESOME!