Exactly. Find me a Ferrari forum with the kind of traffic you'll find on a Mustang forum and I'll concede, but from what I've seen in all my years being a car guy on all kinds of car forums, the high end ones are indeed wastelands with little traffic where days can pass without replies.
they have the money to buy whatever. but they just buy it because they can. they're not car people, they're rich people.
now you have the guy who buys a viper and spends 20grand in a tt kit. or the guy with the cobra who puts in 10 grand. they have the money, but thats what they enjoy. its 2 different worlds. the rich guy in the ferrari wants to look cool going out with his wife, the other guy with the gtr with 1000hp will make you look stupid slow going down the street/highway. meanwhile they might of spent the same amount in the end.