still do not get it and I completely understand all the paypal concerns and have heard all the horror stories but...
-Its the buyers not the sellers setting the premium on Ebay (so its not like the seller is adding in a scam premium to his price - its an auction where price is determined by the buying community)
-There are lots and lots of ways to protect yourself on Ebay (including things like cancelling bids to low rated users, accepting different forms of payment besides paypal, only accepting verified payments etc.)
Do you really think everyone paying a $6 premium on Ebay for a Bitcoin is scamming?
Getting aged and verified Ebay and paypal accounts is not the easiest task and would most likely cost much more then a $7 scam is worth.