That's rad. Enjoy it. You are responsible for a lot of those miles ya? I think that makes a big difference because you know the history, good and bad.
Unless you were lucky enough to buy one new it's great to start off with a low mileage car, but beyond that it's just somewhat of a novelty. Sure, a super mint low mileage car may be worth quite a bit more one day, but i doubt these cars will ever go completely nuts. KPGC10 GT-R is only just starting to gain some momentum (one just sold in Monterey for ~$270k IIRC?) and those things are in short supply- major factor. They made way too many Evos and it is mostly a supply and demand game. However the caveat there is that while there are a shitload of them, a lot of them have been modified, as we all know.
I'm at 78,8xx on my 2003. Picked it up end of last November. I've been trying to drive it as much as possible. Doing an 500 mile-er this weekend up to Coalinga :)