cause i can buy live sand for just as cheap :)
Living on the coast of south florida with they Keys in driving distance i can work out special prices with the normal shops like marco rocks, live rock usa, just live rock, and tampa bay saltwater that don't incur any shipping which saves me a ton. Plus if i show up with my own buckets/containers it saves them on materials cost and i get teh sand cheaper.
Or i could just got it while scuba diving.
i have no problem with dry aragonite, if i can find it cheap.