the nsx is still considered a mass produced car. similar to that of the say the ferrari 360. there was never a shortage of the nsx. if u wanted one and u could pay 90k for a new one u could get one. but the main reason why the nsx wasnt that great of a seller was because it was overpriced. its acceleration was nearly the same as the 3000gt, supra, rx7 and the 300zx, but its priced at atleast double if not triple the price of the other competitiors.
i believe there were more then 15,000 nsx produced in the 15 year span.