Yes, this is the going rate for good probiotics. I wasn’t able to find it any cheaper anywhere else online and its because they make just about $1 selling each bottle (whoever sells them). Vitamin shoppe carries them too, but isn’t available in every store. If they don’t have them, they’ll talk you into another brand.
I believe wal-mart also carries megaflora and its available at my local health food store (thats where I get it).