The contacts you make and the relationships that develop will make the trip worth it for you. This is more than just a knife community, it is a "people" community! Developing friendships and relationships will pay off handsomely in the long run.
At shows, I've met Ed Fowler, Raymond Richards, Tom Ferry, Lyle Brunchhorst, Rick Hinderer, Ed Caffrey, Devin Thomas, and on and on and on...........................They've all been supportive, friendly, and wonderful to me. I'm better for having met them and many others.
Go to the show!!!!!!!!!!!!! Buying materials or knives at a show are just a bonus for a knifemaker. Meeting new friends and peers is the true value of attending a show. It doesn't matter whether you have a table at the show or not.
P.S.
Remember, that if you want to talk with a knifemaker at a show, that his or her time is very valuable. At that particular time, he is there to earn a living or at the very least, supplement his income if he's a part time maker. Be courteous and make sure that you catch him at a lull at his table. If he has potential customers, it's important to stay out of the way and give him the best chance to sell a knife or two!
Unless, of course, if you're thinking about buying one of his knives, then by all means, bother him all you want!