I went last year and had a great time, and learned lots of new stuff. I’ll be going again this year.
Last year WordCamp was free, but this year they’re charging $25 per person, to help offset costs. Personally, I think it’s well worth it. You get 2 days of great information, a cool t-shirt, and free food. Where else can you get that for $25?
If you planning on going, I would sign up soon. The hall isn’t tremendously big, and as of this morning, 124 people have already signed up.