The paypal fees for that would be around $10.00 for a Premier/Business Account.
On top of the $12.00 or so that ePay gets.
I don't know if it is worth it but I would put that I take Paypal /no credit cards in my auctions if I was going to do it.
The bidder can take .41 savings for not having to use a stamp and will get it shipped much faster. I can see why a lot of bidders want to use paypal.
I also see why ePay is making so much $$.