I suggest reading up on the paradox of choice in respect to psychology, but by all means, go ahead with the usual cheap shots at Apple users being apparent idiots.
Me, I find that over the years I grew a little disillusioned with Linux distros after all the tinkering around with one forcing me to move to another until, eventually, that distro went and bugged me e.g. going from SUSE and Mandrake to Ubuntu and Mint. Sure, you can ditch one distro for another, but why should I have to go through the rigmarole of having to do that whenever I find I have a qualm with their software's direction?
Windows, well, it'd been all I'd used since I retired my Commodores. I still regard XP as the pinnacle of Windows (and so does business globally). While Win7 did surprise me after the debacle that was Vista, I have found that even Win7 is now lacking in stability and is horribly bloated and slow on my less than two-year-old machine these days, to the point of barely booting up to a usable desktop in under five minutes with only anti-virus and malware protection as start-up programs. My seven-year-old XP desktop manages it far better.
So I moved to Mac and took the plunge. I'm certainly liking Lion, but as I've never really used previous iterations of OS X, I can't be an accurate gauger of just how much has changed. To me, this is stable, fast and has all I need. The lack of driver issues is a blessing, given the countless hours I threw away with Windows and Linux sorting out display or wireless hardware clashes.
In any case, I think the bigger problem is that desktop operating systems are essentially done. They were since XP, near enough, with only the token flourish being added these days to justify new sales, much like with Office, which you could say was "complete" circa 1997.
The move now seems to be to the portable market, with merging the newer smartphone and tablet OSes with those of the desktop. I am rather apprehensive about Windows 8, which, as some have mentioned, seems to be going about it wrong with treating a desktop or laptop as a tablet or mobile phone, but it may prove to be a good all-rounder even so. It reminds me of all those asking for a touchscreen Mac and I was left wondering "Why?". You don't want
a laptop or desktop to be controlled by finger input on the display. It makes no sense whatsoever, yet we seem to have Microsoft pushing this with PCs that came with horribly clunky touch interfaces in Windows 7, though Windows 7 was never meant to accomodate touchscreen control until new APIs were devised in an almost ad hoc
manner. It certainly wasn't as fluid as using an iOS or Android device.
I also don't buy the locking in arguments, which can really be seen in ANY platform (because we all know Microsoft doesn't hold a monopolistic stance, right?). So long as the systems work and offer the choice within their ecosystem, as Windows has, then there's no problem. I don't have a lesser experience in iOS because I have to use iTunes and the App Store. In fact, the dawning of more use of HTML 5 for applications means, along with Java and Air, it adds more platform agnostic experiences. And that can only be a good thing.