Yeah. I now only buy on eBay from people who reply to questions and who offer a returns policy. I often ask for a photo to be emailed to me which can give you a better idea of grading. I guess there's a natural tendency when selling to see your coin through rose-tinted specs, after all we'd all like to get a good price, but there is a risk with eBay so I approach with a deal of suspicion. I also am suspicious of people who sell a lot of cookery books (or kilts, teapots or whatever) and then offer a high grade coin. I recently found two identical hammered Charles I shillings (now, how likely is that?) offered within weeks of eachother. The second seller said it was left by a relative and they had no knowledge of coins. I imagine that leaves you with little comeback since they haven't specified a grade, identified the coin or even suggested it isn't a counterfeit. The advantage of eBay? You get to see a pretty wide selection of coins and you get to see lots of photos which make a handy reference file!