I don't know guys. While I love the NSX and have owned 3, there has never been a better time to be a car lover.
You've got affordable pure toys like S2k, Evo, STi, even muscle like the Mustang. Then there's the less pure but still sporty Solstice and Saturn, Miata. Then you have a little higher cost yet pure toys like Elise, new Z06, New M Coupe and Roadster, Cayman, Viper, C55 and SLK55 under 100k. The new XK8 is sweet also. Then there's the high end - 911 GT3, Aston AMV8, GT40 and others.
Would I take one of these over my 98 NSX for the same price my NSX was NEW? Of course! I would take a new Z06 for $75k over $90k on my NSX. I don't think I would buy an 05 NSX for this reason. I would just buy a 97-2002.
BUT for the same $45k or so my car is worth, I don't see a worthy replacement except for maybe an Elise (just for a change) or and 911 Turbo 3.6 like the one from Bad Boys.