The price listed is wrong (still): $159 for basic version, $239 for standard (single user), $359 for pro (networkable) and $100 for each additional user after 1, then $599 just for the ability to charge credit cards. If you want full accounting, add another $500 for MoneyWorks (which actually loks pretty good, but doesn't seem to have POS capability, nor the ability to charge credit cards).
I'm frustrated enough with MYOB ($300+150 for additional workstations) that I'm considering other options, but with this being just about the only other option, having to dish out triple the cost of MYOB makes the cost of entry a bit steep. The $600 to run credit cards seems usurious since there's virtually no other options for doing it, especially when companies will often furnish credit card machines at no cost with a contract.