I"m actually in the process of moving up to Rochester with my fiance and coincidentally I will be in Rochester this weekend! Might have to make some time to pop in
First day for the treasures, last day for the bargains.
Of course Peewee is right! If you're wanting to buy plants, the first day will give you a better selection to choose from, but on the last day vendors start marking their prices down on the remaining plants so they don't have to cart them home again. Good luck with your venture!