Hi Sue & Andrew, thanks for writing. I have used PayPal before but it was even more expensive than doing a wire transfer.
Of course however, Airbnb can pick their own bank charges at the very least, in the interest of preserving the relationship with hosts. When it comes to the large variability in fees, their bank is there for that. Airbnb's Bank Relationship Manager can easily work out that for them. But passing on all charges to hosts?????, simply dishonourable, in my view.
Thanks again for writing and hope to engage some more.