Cars (like all assets) are worth what people will pay for them - we've all heard that I'm sure. Genuine, numbers matching HO Falcons with history have gone for high six-figures. Brock Commodores now go for around the 100K mark or slightly under. While I won't put the Nurs and N1s in the league of the HOs (at this point in time, and in the Aus market), the rare Skylines mean a lot to a certain group of people and to me their prices are justified in that regard. The question is; the Falcons appeal/appealed to the Baby Boomer generation because that's when they had their day, and were significant to that generation - in the 70s. And when that generation could afford them, that's when the demand came (and the prices skyrocketed accordingly). Now, the GTRs mean a lot to both the guys (and girls) who watched Bathurst in the early 90s, and also a second cohort of people who grew up with them on the video game stage (Playstation generation). One has to ask, do these people currently have the money to afford the cars they so love - now, in 2, 5, or 10 years' time, or indeed has the time already passed? Like everything there will be a peak in demand. Just because something is expensive at a given point in time though, doesn't mean it isn't worth it.
Cheers