Initially I thought $32K for a 96 NSX-T would be a good deal. Being an automatic does drop the value. They don't have the same demand as a manual transmission car.
I wouldn't worry too much about the mileage. It is a Honda and there is at least one NSX out there with 300K+ mileage on it out there and still running strong.
It also depends on whether the maintenance has been kept up and up to date, water pump & timing belt etc. AND that it doesn't have a salvage title.
It really comes down to whether you are happy with it. The AT cars have less horse power too.
You can find out lots of information on the Wiki here on NSX Prime.
I'm sure you would still experience LBS (Look Back Syndrome) and break necks in an AT NSX as you would in a MT one.
What I entered in at Edmunds.com came back with Trade In $32,841, Private Party $34,134 and Retail $36,328
NADA Low $27,900, Average Retail $38,100, and high Retail $41,700
I use to like to use the Hagerty.com valuation tool but without the VIN I didn't see how to get past a 2000 model year.
Kelly Blue Book was lower, but from my past experience KBB values were much lower than what the actual market was for the NSX.
It showed private party very good condition at $28,532 and excellent condition $29,234 but like I mentioned above, I have always found their valuation to be much lower than what they actually seem to sell for.
To me the $32k seems like a fair deal as long as it all checks out.
Also, I plugged in my location to check the values and I live in a location where the value drops on sports cars, so it also depends on your location.
Osiris_x22 seems to have kept a closer eye on the values from afar. I really haven't been watching the market values much lately, since I'm not looking for one.
I know a friend who purchased a 96 NSX-T MT with 52k on it for around $36k last year, which seemed like a good deal at the time. But it also had 1/2 the miles and the MT.
Good luck in the hunt and keep us posted.
Edit... ooops, I must be blind or had another post in mind... for some reason I thought the OP said it was a AT, so you can disregard the AT comments. Otherwise it seems like a good deal... BUT it does sound fishy that the dealership purged the records after 1 yr. Even my independent mechanic keeps all the records for work done on my cars.