I just discovered that I have 2 D90 source accounts (gotta fix that) and i missed your post back in November because I've been accidentally logging in under my other profile. Sorry about that. dumb.
Anyway. #1997. I bought her in Erie, Colorado in 2002 (i think-may have been +/- a year) as my daily driver and backcountry access vehicle. I moved back to NYC in 2004 and it was in Williamsburg and then Greenpoint, Brooklyn for a couple of years before I moved it to a friends house in PA. It ended up sitting for a long time and i wrenched on it when I could-which is not very often. I moved/drove it to Southern California last year, got a house with garage and am catching up on all the work it needs. It's still my daily driver: 135,000 miles. Original engine (heads rebuilt at 95,000). Second R380. It has lots of mostly cosmetic rust that I'm slowly removing. I'm a novice mechanic, so i have to do everything three times to get a halfway acceptable repair. But I wouldn't drive anything else. And it still runs great.
That's the 20,000 foot view-hope it was what you were looking for. Where are you based in the city? I'm still in Greenpoint almost every month and have seen more and more D90s around in the last few years.