Not quite the same I know, but I recently went along to the UK vapefest. I was really glad I did, everything was there even though it is still a small show here.
If nothing else it's great to see the diversity among the vaping community, we had all ages and all groups, and I saw just about every conceivable device being used at some point. Even a dalek hookah! And where else will you get a chance to actually handle some of the worlds best devices? You may be grateful you got so close, the Internet never really does these things justice.
So many reasons, I would be going if it was even slightly practical for me to do so!