Absolutely. Cryptocurrency should make payment middlemen obsolete. PayPal should get laughed out of the building here. It's incredible that this has any legs at all. This thread should be full of the names of Ethereum wallets.

MetaMask, Trezor, MEW, Status

You might still want an mediator, sure I can pay you directly on chain but what if you don't even ship my goods? I'm not going to court over an 5$ item but I don't mind engaging PayPal support.