This NSX has been listed on E-Bay a number of times over the last few months.
http://www.nsxprime.com/forums/showthread.php?t=47366
Still For Sale!
I would say that you should go look at the car in person.
Have cash in hand or financing pre-approved (although financing on a vehicle of this age may be difficult to find using the car as collateral).
Depending on how this Dealership acquired this car will make a difference on how motivated they are to sell it. If it is a consignment sale then they are probably not too motivated. If it is a consignment sale you can request that your offer be made directly to the Seller, perhaps the Seller is motivated. If it was taken in on a trade the Dealership is "Flooring" the vehicle and is losing $ by lost interest or cash-out expenditure and the deferred income/profit that a sale would produce. Many times after a vehicle does not sell in a reasonable amount of time it indicates that it is priced above what the market will bear. In other words they want too much $$$ ! Experienced Dealers recognize this and will often sell vehicles that have become "stale" for their cost or slightly less than their cost so to reinvest their capital into something that will have better market appeal.
As far as the miles go-
The SC does add some value but it is uncertain just how much. Questions to ask: How many miles on the SC? Was the SC new or used when it was installed? How many miles on the engine before and after SC installation? Does the engine have any internal mods? If the engine with the SC is high mileage I would not give the car a lot of add-on value. The internal stress that the SC can create may (or may not) cause pre-mature failure of critical componants. I suggest calling Comptech directly and talk with Shad with some of these questions.
I have seen some NSX NA 3.0 with 250,000+ miles and I know of one with close to 350,000 miles. Not all engines and chassis will go this many miles but the point is that it is possible to acheive these miles with the proper maintenance, care, and a little luck.
IMO- You should try to buy the best NA that you can afford and add the SC when your budget allows. Or buy this one (if it checks out ok) for a price that you are comfortable with and enjoy it!
Remember, generally you get what you pay for.
Clean, well maintained early NSX will cost $27,500 - $33,000
Some exceptional examples will cost more.
Higher mileage and vehicles with
issues will be less than these averages.
Good luck with your search.