DIlip sent me an invoice of the items in my last order and I've been sending it out minus the prices. Not because I need anything, just pure love of the game at this point. I'll just say I'm glad this thread got started. I don't think I was getting ripped off before (I was using Lifebelt and Gana Healthcare who are both pretty fairly priced), but it's easy to see how it can and does happen.
So many of these guys have hundreds of reviews and their prices are outrageous. Some will try to match, but more than a few have told me they're charging two to three times as much because their products are real and my prices have to be from someone who's a counterfeit seller. It definitely pays to shop around.