This could potentially explain why WotC was absent at Gen Con 2015. They didn't have a booth in the exhibitor hall, and they didn't have a presence in the gaming hall. Baldman Games was left to run all of the D&D events, and they had to do it in Hall D. Paizo kicked WotC right out of the Sagamore Ballroom. It was a pretty terrible gaming experience, really, and that makes me a sad panda. It was loud and crowded. I had six games and all but one were with seven players. We were hearing from a lot of people that WotC didn't put any money into Gen Con this year, but I don't have any first-hand knowledge of that myself.
It's kind of crazy. A gaming convention that started in Lake Geneva by the guy who created D&D, and really built much of its success on D&D, had D&D's IP owner walk away from it.