Interesting. I have no doubt that PayPal provides a great service and it is easy. I don't have a problem with that outside ebay.
BUT, here is my reason for NOT using PayPal on Ebay auctions. Simple. eBay owns PayPal and I don't think it is fair that I or anyone else get tapped for a percentage on the item that sold on eBay and then get whacked again for receiving the payment through PayPal.
Just my opinion and thoughts.
Rick H.