I love Vegas. I've been IN Vegas during every Internext show since 1999 except last year. But attending "the events" and walking around getting free pens at the booths isn't important to me personally. The problem with being able to talk to 10 of the "big guys" at shows is that you also have to be friendly to a thousand of the assholes you'd rather not have to deal with, lol.
EVERYONE should go to a big show at least once or twice just to meet and greet. But there's a certain point where you just don't need to. Most of the program owners stay in offsite hotels, have their own private parties and I daresay most of them don't attend the overcrowded free pour booze fests - if they do, it's usually for less than an hour.
I can talk with any of the "big guys" 12clicks mentioned w/o going to a show. Heck, I think anyone can. I've seen them all post here and other places and answer any question they've been asked. In fact, you probably have MORE access to them online than you do when you're competing with 100 other folks for their attention.
Shows remind me of frat parties - fun for your freshman and sophomore year year, but once you're a senior, they start to lose their charm.