Absolutely no surprise at hotels and Airbnbs selling out in Tilburg. If you intend to go to the show and want to stay in Tilburg so you don't have to catch a train after the show, book something now. I started searching for a flat in June last time and had to stay in Breda. Everything in Tilburg was already booked.
Breda is a nice little town, I enjoyed it a lot. I'm staying in Tilburg this time to explore it. Apparently my Airbnb includes a free bike that I can use, so I'm going to maybe bike down to La Trappe abbey, and overall just bike the hell out of the town and the countryside, as I'll be arriving on Tuesday.
Also, apparently all the shows are sold out now.