So, You’re Hogtied To One Payment System?

And one of the first few thoughts are whether or not that is fair, legal, greedy or monopolistic?
Down under, they are concerned with eBay Australia’s requirement that sellers only offer PayPal as a payment processor for their auctions.
eBay Australia Sellers React to PayPal-Only Policy
“eBay Australia made a decision to remove direct deposit, money orders and checks as payment options”
Are eBay Australia’s New Payment Restrictions Fair Trade?