I've always felt that the value of some used cars go up as people get older and feel nostalgic about cars that they were too young or too practical to afford.
But, some things this year have just thrown me off. 1990s Acura NSXs are hovering in the 60-110k. Acura Integra R hatchbacks sell for 40-65k recently on BaT.
In the 90s, the NSX was my favorite car, right up there with a Lexus LS400. But I'm not sure I'd pay 80k for an NSX when a few more bucks gets you a G (which is far superior in looks, performance, tech, safety, etc). Also they made about 18k NSXs worldwide over 13 years or so... so a little bit more than the G and yet they're commanding some unbelievable prices.
The question is... will it take 10 more years for those that grew up in the 2000s to feel nostalgic about Gs and cause a spike in prices or demand?
The NSX does have history, being the first Japanese exotic car, causing the Italians to take note and start to try building their cars better, so there's that going for it. Really caused a change in engineering. But the G also represents the first collaboration with Audi that made them also more usable, reliable, etc. That should count for something in the history books.