I've never been to ConFusion, though I've been to two Penguicons and this year's ConClave. This means I can't tell you exactly what it's like. That said, I enjoyed ConClave so much that I'm going to ConFusion even though it's the weekend after Arisia. I'm really looking forward to it.

Therefore you should go simply because then I'll get to see your new glasses in person. (Selfish of me, I know.)