I had great luck with ebay, I am trying to find the seller for you as i type. I ended up ordering 500 blue legged hermits, $69 for the crabs and $31 for shipping. Comes out to $.20 ea. They also sold 300 and 400 lots but the bidding always ended at the same price. 500 sounds like a lot but I have used them to trade many times even here in FL. I would be willing to bet you would have even more leverage in IA since I remember paying up to $2.99 ea for these little guys when I lived there. If you still don't want to buy that many do what llebcire says and hola a Hung. FYI, in case you were wondering, he still has the largest selection of marine fish I have seen and I have been to many stores here.