Advantage being dual rated fixed wing and rotor craft.
Might make it a little easier to get your foot in the door for that elusive first paying job.
The contrary even, an employer wants helicopter hours and a helicopter pilot, not a bit of everything.
Australia isn't expensive, and the market is (at the moment) one of the best. There are even 'lower' time jobs advertised. You have the right to work in Australia, so stay there and don't think the grass is greener somewhere else.