I like the eBay concept, but it is full of pitfalls! 1) Now that you can't see the screen name of the bidder, it is harder than ever to recognize if there is a shill, bidding for the seller. The % of bids with this seller option, does help somewhat. 2) You can just about forget the grading given to a coin by the seller. It is better to try to grade for yourself, and bid on what grade you believe the coin is. Some sellers will provide better pictures on request...but other buyers will be "reluctant" to provide the extra clarity you may need. For those sellers that will not provide extra clarity, especially for rare coins...I stay away from! 3) The PayPal guarantee is also a joke, and is full of conditions you will never know, unless you file a claim. For instance...if a seller has less than a 50 feedback, then the maximum PayPal payout is $200. Then there is also the $25.00 deductable! Under the <50 feedback rule, you can lose a coin valued at $3,000, and you will just receive $175.00 (200-25) from PayPal. Even with the above issues, I still like to use eBay, and PayPal, despite the 15% combined cost.