So I got to thinking/reminiscing and turns out - I have 9 place pins for 9 years in Dunedin, though the time distribution is not nearly so neat. And, of course, I still own one very special pin (which I bought when I was 22: ohmygod). (Old old old).
Its a reasonable spread, I think. I doubt such a thing should ever again occur within a city- the flat changing sitch common during Dunedin undergrad years is not likely to happen twice (oh god - I hope).
I have now lived longer in Dunedin than any other location in the country - there's a scary thought.
~1 year Havelock North
~1 year Wellington
8 years Taupo
7 years Havelock North
9 years Dunedin
Holy crap. Ok, I feel old. Lets not think on this further.