I personally have a US Premier Account
and I know its needed to accept CC payments via paypal
if you have a personal account. Then, you can only accept non-cc payments.
the fees are relatively high for every payment received using a Premier Account.
Many do not want to pay the additional fees for no reason.
so they rather set up a personal account and not deal with more deductions. Already as a seller, you are subjected to listing and final value fee off an item auctioned and successfully sold.