That's correct.
unfortunatelly, good money lays in pockets of corporate types, and like any other people with small penises they are engaged in vanity "image seeking and maintaining" games. So they want what's "in" and not what makes sense, which makes them not much smarter than frogs or sheep, and that's precisely how they behave. So, my point is that in most cases they will rather have/obtain a second rate domain with correct extension (because everybody else's doing it), than better domain, with "wrong" extension. if all their competitors bask in .com's glory and all they have to offer is .biz, well trust me, most of them will feel "inadequate". And big business was always about matching money, power and ego, or at least the perception of it. They key word being perception. And the perception about you is blown, or badly damaged, the minute others see your extension. That goes for most domainers as well.
Having said that, there will always be a market for the normal, common sense, I-don't-care-what-the-extension-is-just-give-me-a-good-domain crowd, but they will never be able to, or never want to pay premium prices (hence why they don't go for coms)
So, in my opinion new extension game is currently just a game of peanuts in vast majority of cases, and that might possibly change for better one day, although I personally don't believe it as I think that internet address landscape will become even more cluttered and meaningless in future, and the way to the customers/audience for most sites will almost exclusively be through third party providers (paid sponsors, paid and unpaid search engine results etc.....) as oppose to their own efforts.
