Another thing, too, deals with how MG handles currency conversion. You have the option for putting in prices in EUR or USD on the module edit page, but the conversion routine places its work in a wholly different order. Same thing happens when MG only sees USD as a price, and then has to convert those to EUR, with the same sort of ordering result. Apparently there's not much to do about it, either, since this is necessary; some European modules cost more in the USA, and vice versa.