Why does everything have to be presented in such a biased way? Why mention how long between windows releases in a thread about os x releases? When the mods want us to stop the flame wars, but the top of the news feed is asking for one, isn't that perpetuating the issue?
I'll bite: Where is resolution independence that was promised in 10.4? Where is the intelligent, system-wide, user-friendly metadata that Spotlight was supposed to be, that exists in Vista right now? Why does adding Exposé and fixing a bunch of system bugs count as a "new" OS that you have to pay for, when SP1 and SP2 don't count as new versions? Do they not count as new versions because they're free? Because they are still called XP? Because Leopard is still technically called OS X and at this point OS X has cost 649.75 if you're a loyal mac user (10.0, 10.2, 10.3, 10.4, 10.5 were each 129.95). That's as much as Vista Ultimate and XP Pro (299.99 + 329.99) combined.
It also ignores the 2005 release of Media Center edition and the server/mobile versions that were released.
I'm typing this on a MacPro. I get it. But please stop acting like fanbois on the front page. It makes us all look dumb to the general population.