I used to sell calcs on ebay, but they take SO much out in fees... up to 12%, and you have to pay for shipping... I get around the same from cash4calcs, and they pay for shipping and drop it right into my paypal account just like with ebay. I'; ve spoken to a few ppl over there (andy) and they know me by name, always give good prices. I've never had any delays with being paid, usually a day or two after i get the email saying they got it