I just sold my R32gtr here in japan and will have a 91 nsx in 6 months to a year. The positives of a JDM nsx vs. a USDM are not the RHD or The slightly better ECU tune. They are the same in almost every way besides the interior. Same engines same trannys same body parts, as said above the nsx-r is the only one thats really differant. OK now that all being said having lived in japan for a while i have japanese freinds that have access to the tokyo auto auctions that only a certified performance or dealer shop has access to. You cant buy a car from those big auctions being a foreigner unless you own a shop in japan and even then it would be difficult to get a auction account. The nsx in those auctions sell anywhere from $18 for a nice auto nsx to $50 for a awesome nsx. However i have been looking and they do have the occational 91 manual trans nsx with around 100,000km sell for $20-$25 which is what ill me looking for hence my 6 to 12 month window. It will take time to wait for one like that to come up at auction but i will get one. Ok so now back to the main reason for getting a nsx here in japan vs the US. Now that you know its possible to get one here for the same price as the cheapest nsx in the US heres why im getting one here. First off a nsx that costs $20,000 in the US will have very high mileage in the 150,000mile and up range which means the engine is getting old and will need a rebuild because lest be honest no one drives a nsx like a grandma. Second the type of owner for a $20,000 high mileage nsx in the US tends to be younger guys that have beat the crap out of the car so the engine is tired and the stress put on the car will be alot. Also consider that the body will be alot of money put into it. All the bushings will need replacing, the trans will be getting worn out. In short your going to spend a easy $5000 to get it in good condition. All the US nsx i have seen for 20k had problems of some kind so keep that in mind because nsx parts are not cheap like a civic, also seeing that younger guys are more often then not owners of the older model 90-93 nsx that sell for 20k we all know that buying a honda super car is expensive and when you spent all your money on just getting the car you tend to push off routine maintainance that cannot be neglected on a nsx, so that will also take a toll on the overall condition. Ok now for the JDM nsx owner type. Since i have been in japan i have never seen a nsx with a driver that was younger then 40 years old. The nsx or R34gtr in japan is like a shelby gt500 or hemi cuda is in the states. They are a icon to the japanese car enthusiest, so japanese guys that own nsx treat their cars like a ferrari, they drive them in good weather and only drive them for special ocations and weekends. They do maintance regularly to maintain the nsx look. That is why most nsx in japan have less then 100,000km or about 65,000miles on them even though they are almost 25 years old. So all that being said i can get a RHD JDM nsx for the same price as the cheapest US spec nsx and will not only have alot less mileage but better maintained and better condition. You will not see a nsx here in japan being parked outdoors unless they are about to drive it or just drove it, Or at a auto lot where they sell them. So yeah there are alot of differances but not so much about the parts in them.