When, or how, is a wire transfer cheaper than Paypal? In the US, wire transfers through banks tend to have fixed initiation costs on the order of $25-$35.
Plus, you have to convert to a business account (additionally to having to send a lot of different documents to prove your identity) if the amount is more than 2800$ and then it's 3.5% fee.
So yes internally in the US paypal is cheap but once you go cross border it's expensive and it's a headache