PaySera.com has IBAN's with multi-currencies. So like PayPal, you would have 1 account, a euro transfer is credited in Euro's a Dollar transfer in Dollar etc.
This would certainly be a feature that would make the premium price acceptable.
(You can start with the EU/EEA currencies, including USD)
You could cover the whole SEPA area, 19 EUR counties and 8 other currencies +USD. USD might bring you under US jurisdiction for some parts but the rest could be covered by your passporting.
Austria AT AT EUR
Belgium BE BE EUR
Bulgaria BG BG BGN
Croatia HR HR HRK
Cyprus CY CY EUR
Czech CZ CZ CZK
Denmark DK DK DKK
Estonia EE EE EUR
Finland FI FI EUR
France FR FR EUR
Germany DE DE EUR
Greece GR GR EUR
Hungary HU HU HUF
Iceland IS IS ISK
Ireland IE IE EUR
Isle of Man IM GB GBP
Italy IT IT EUR
Latvia LV LV EUR
Liechtenstein LI LI CHF
Lithuania LT LT EUR
Luxembourg LU LU EUR
Malta MT MT EUR
Netherlands NL NL EUR
Norway NO NO NOK
Poland PL PL PLN
Portugal PT PT EUR
Romania RO RO RON
Slovakia SK SK EUR
Slovenia SI SI EUR
Spain ES ES EUR
Sweden SE SE SEK
Switzerland CH CH CHF
United Kingdom GB GB GBP