Depends on what you value. I like the seminars/town halls and the vendor area. I also like having a beer at the hotel bar and seeing players and coaches doing the same. I don't care about autographs. So the last few years it has become not worth it to me because the vendor area has decreased, players havent been mingling after hours as much, and the admission price has increased.
But if you love autographs, it's a gold mine.