I know what you mean with the frustration and crappy pricing. I've gotten the Pacific Red Legged hermits, and I think they are what I've had the best luck with. I do like the scarlets, but they don't really eat much macro. I love nassarius, both the smaller ones and the Tongan large ones. I have 3 of each in my 54gal and they've lasted for over a year and a half. I have a striped setpent star which has also been a nice addition and lasted quite a while. I like the Cerith snails too. I had a few come into my tank on some LR, and they ended up multiplying! I ended up with at least 50 or so. I've had my ups and downs with Emralds. Definitely do NOT get a Sally Lightfoot if you plan on keeping a clam. I lost a beautiful baby Maixma to the lightfoot.