Are you unconfident that your property will not be able to attract sponsors?
Luckily, there is no need to worry - companies will sponsor just about anything nowdays (or at least, before the global recession). This claim is proved by the number of sponsors that the U.S. National Yo Yo Contest, held in Chino Hills, CA, is even able to attract:
Properties need to just work to better understand who their fan/user demographics are and which companies' missions/objectives align that with niche. Here is a video that demonstrates the large number of sponsors that the operators of the U.S. Yo Yo Contest were able to bring on board: