Hey,
Fellow NZer here. When you do get one join our club at
www.86brz.co.nz
I was a huge fan of the Orange when it first came out (being a Toyota exclusive colour helped a lot too), but I've since converted to the Dark Blue (WRB being Subaru exclusive). Looks classy and if you look in the gallery forum, you can see nice examples in each colour you're interested in.
I'm intrigued by the new White and Silver colours coming approximately September of this year (should be an August 2014 build date) - as well as the new additions, but nothing's official as yet from the dealers AFAIK.
I'd go for blue but thats my bias. Theres a HEAP of white ones around in the club, with black being the second most popular colour around. Third is maybe the gray... And the rest are all pretty rare. Red, Blue (I can count 3 off the top of my head) and Silver. Agree with the problems w/ the red flaking, as well as previous advice that it will be a police magnet LOL.
If time is on your side, maybe wait and see what the new colours are like before buying? Then you can either get a new colour, or haggle down the price on a preferred "older" colour.