Depends
Depends
What are you hoping to learn?
The show floor is basically an open show with booths around a convention center. Most of your local manufacturer reps are there trying to "woo" potential lines away from their competition. So, hopefully you are going for more than just the booths. It is an interesting part of the show, but not the key part unless you area manufacturer's rep, which in that case, you have probably gone before or work with someone who has gone before.
Take in a few seminars. The show is worth what you want to put into it.