I have done craft fairs for more than 40 years. I have had booths that were free and paid as much as $250 for a booth (one-day). The free shows weren't worth it and the $250 show was, imagine that!
Yesterday's booth was $50 and was adjacent to a well-known (47th annual) antique street fair. What was a bit misrepresented to me was that the area I was in (a parking lot off of the main drag) was supposed to be "collectibles." Someone (the guy who rented those spaces out!) used that word generously. Dried floral arrangements, Hot Wheels cars + framed vintage postage stamps, funky "hipster" (?) neckties straight out of the shipping boxes for $9.95 each, essential oils and palm readings, a chiropractor, and me. I made my booth fee back and then some, but that will be going towards getting my truck repaired as it decided to have a hissyfit yesterday morning as I was trying to leave my booth space to go park.