A lot of people are. Mac OSes from about 7.5 to 9.2 did have significant stability problems and, in many ways, I think Mac OS8 and OS9 were getting more complicated and difficult to use. Before the advent of the iMac and OSX, I had pretty much said that I wouldn't buy another Mac. Those two products changed my mind. Most of the complaints that are bing raised about OS9 (e.g., the taskbar, stability, etc.) are not problems with OSX. I will also add that OSX 10.0 was not ready for primetime, so if you had an experience with OSX 10.0, a lot changed with 10.1, 10.2, 10.3, and now 10.4. By 10.2, it was definitely ready for primetime.
You know whem Microsoft does this people make fun of them and say they need to wait at least until SP1 before upgrading. So are you saying based on your entire post you need to wait for 10 versions of Apple's OS before getting a good one? Of couse that's a bit extreme, but I'm just trying to show the way it's all about attitude and how the systems aren't being compared on an apples to apples basis.