paypal still the best payment processors over the world since most ebusiness use it,bitcoin is new and already got a part of the cake,besides those is hard to exchange to paypal as a user can open a fight and get back the money sent on the 60 days ahead the transaction,soo exchange to paypal currently would be a disaster since desonest people will open a dispute and take the btc as well the money back.... soo better avoid paypal....