Paypal is a very money minded and highly commercial payment processor.They work for the profit share only as well as there are so many issues and disputes which arise whn dealing with Paypal these days.On the other hand Bitcoins is a currency made by pople and used for pople online without much share and without a lot of commission.
Biggest problem i see is their buyer guarantee. With bitcoins they cant go to credit card or bank and pull money back at a later date. If they do i see them using a escrow type service where it's held for so long or they make you have a account tied to normal types of their "confirmed" accounts.
I hope they accept one day. I just won't be holding my breath as they seem to like the spot they are in. With ebay/paypal they essentially have a monopoly owing full circle of transaction currently.
