Seems to be the same in "Possibility City" (Louisville). Though, there are a couple gardening centers (the Frank Otte location on Bardstown Road) that carry some nice pots and generic "bonsai soil."
I'm heading into No Man's Land today to visit a couple shops for supplies. My little Maple and Blue Spruce trees are in need of new goodies.
I went up to one of their white elephant sales a few years ago. There used to be a bonsai society here but it's been inactive for a few years unfortunately.