Local cons sound great, certainly more affordable, I don't know that I could deal with huge events like Comicicon.

Back in college I went to the con that became Convergence, (this is 20 years back) but I've never been to a con since. Money, time, etc.

I do like the idea of attending a con with multiple fandoms, I know there is a group getting together a Britcon in Bloomington, they have a facebook page, it's a first year, so I don't know how it's gonna go.