I was there once, endep up with a 97, tried them all ... First I said, well, I had a S2000, a extremely fun car to drive, not as prestigious, not as "special" and no exotic (ex-supercar from the 90's either) ..yes 9K RPM's are fun but, there's no torque, is weird, but our NSX's are not "Torque monsters" either ..
I bought my used (with 12K miles) S2k @ 24K I believe years ago, 3 years later prices for a 02 S2k were around 12K (realistic price for private sale) ... that was almost 2 years ago.
Reasons I got a 97:
OK I sold my S2k for 12K (that was after I bought the NSX) .. my budget was 30K, I test drove a 91, a 93, and another 94 I believe, one thing I noticed, me and my gf, this NSX's were HOT, but, not much "faster" than our cherished fun to drive, and only 50K miles S2k .. they were faster, no doubt, but didn't justify for me to spend the extra 18K on them (91-96 with a bit more miles than the S2000) ....
Then I decided to go up to 40K (yikesssss) but the 3.2 with the 6speed really has a noticeable difference, in performance, I love NSX's regardless, but I think that If I came from a Prelude o a car like that, I'd be happy, but the S2k transition made me take the extra balls to spend more but get a car I wouldn't regret.
So the looks are a bit outdated, yes, but with spacers, lowered, 02 Wheels and rear -and other mods- I am a happy camper now.
As "heySkippy" said, the sweet spot are the 97-01's ... I LOVE the bug-eyes, but man, they are a lot more $$ and still they don't really make me think about doing a 02+ upgrade on the front, I quite frankly, LOVE the pop-up eyes
As the prices right now are so low, I wouldn't even hesitate to look for a 97+ ... I remember in 07 I almost bought a 93 for 36K .... prices are amazing now, GO FOR IT!!!
Oscar
PS: either way, I am sure you will be very very happy, NSX's regardless of the year, they are all amazing cars!
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02+ are hot cars
but a 91-01 "refreshened" car can look as hot if not even more
But that is MY Opinion, I might be wrong.