I think this is a silly stereotype. Most any shiny new device is going to bring at least some sense of excitement and satisfaction at purchase/unboxing, so it’s silly to associate that phenomenon with just Apple customers. Also, we shouldn’t confuse Apple’s product announcements, with all their pomp and circumstance, with the sentiment of every Apple customer.
Yes, it’s fascinating to see where Apple will go next, and how that will move the market. And it does, because Apple is one of the dominant players in the tech world, and they capture an audience better than their peers. You’ll find many of Apple’s customers don’t immediately rush out to buy the newest hardware. My wife has an iPhone, and she could care less what Apple does or announces, and when her iPhone dies, she’ll want another because it’s familiar. And it won’t even have to be the most expensive or newest one either. Sure, Apple has their crazy, passionate fans, but that’s almost any company. You’ll also find many of those same passionate Apple customers bashing Apple when they feel Apple got it wrong. They certainly don’t give Apple a pass and fork money over. Look no further than the butterfly keyboard. Apple said it was the best new thing, the customers said otherwise, and now that keyboard is dead.