I'm a Wahs fan because it's my only option! Ain't no way in he'll I'm supporting an Australian club and that's the reason I started following the Warriors as an 9 year old In 95. As soon as a South Island team comes into the comp I'm jumping ship because Chch>Auckland>Australia.
I suspect for all the noise about rusted on Warriors fandom most Southerners would be the same. Same way I'd imagine most Cowboys supporters dropped the Broncos quicker than a hiccup in 95.
Only the most die hard Wahs will spurn their local South Island team and the chance to see live NRL action every 2nd week out of loyalty to a Auckland team.