See my post 14 on this thread. These shows started as a place to meet the factory reps who would cut a bargain, but the internet gives similar information and bargains every day, and few factories send reps. You might find a few deals, but that isn't a primary reason to go any more. Last time someone was selling Kreg screws at $15/box of 1000, half the usual price, so I got a box, and picked up a router bit or two (additional 10% off the Woodline low price, but add in sales tax so little bargain).
The free tutorials last year were good, but not enough for me to make the 3 hour drive from Austin.