Thirteen. Kumoricon 2006, 2007, 2008, 2009, & 2010; Sakuracon 2008, 2009, & 2010; MEW Con I, II, & III; Gamestorm 2009, and Akicon 2010
At some point, I realized I've been going to cons for a while.
How many cons do you think you'll attend in your lifetime?