I tend to make more profit at the little events than at comic cons and book festivals. Even when a con pays for my booth and hotel, and have a green room, I still have costs that must be offset by sales. Sure, I'll sell two or three thousand dollars in books at a major con, but it still costs me over a grand to be a vendor, or a couple hundred bucks to be a guest.
I've got another boutique event this Saturday. It's actually at a tractor pull in a neighboring town. This one only costs me food, gas, and product, so I only need to sell a book or two to break even. It'll also be the first event that I'll have Erika's prerelease complete children's book series. I'll be sure to post photos.