I've been communicating with an eBay seller who's just minutes away from me. She has a regular fish store in her home with over 100 tanks! She seems really nice and also breeds bettas.
Here are some Nerite snails she currently has available and I really don't think they are super expensive, but shipping is always a consideration. http://www.ebay.com/itm/Horned-Nerit...#ht_500wt_1202
I'm lucky because she's going to allow me to come up and pick out some plants, maybe a Nerite snail and eventually some cherry shrimps and I won't have to pay shipping.