Don't confuse marketing skill with programming skill
The Apple vs PC argument was what I was concerned with. It's never really been that, but instead Apple vs Windows (Intel and other hardware makers were truly just caught in the middle)
But since your typical Apple box can run both Windows and OSX at the same time, why not consider it? As for ease of switching, OSX is so streamlined and the applications are almost identical on both platforms that it takes literally hours to adjust from Windows to OSX.
IME, OSX feels like an appliance or gaming console in that you turn it on and just simply use it. It's as direct and pragmatic as a console or cell phone or any other device that you use during the day that's built to do one task very well. Except it does everything like that. My PC is a lot klunkier and from an aesthetics perspective always feels like it's between me and my work. Like the difference between wearing glasses and contacts. One you notice and the other you just don't. There's a reason people who have the extra money almost always buy contacts.
And in this age, why NOT have the option for computing that intrudes and holds you back the least from getting your work done? Work isn't my hobby. It's crap I gotta get done so I can get back to my real life. And not much else. Saving five minutes or one headache during the day is more than worth it.
OS X or Win 7 both "just work" or "just don't work" pretty much the same based on the skill level and job intended of the user.
Different things suit different people - I don't doubt your OS X suits you better and that's cool, but to universally declare Windows as "klunkier" for example, is silly. It might be to you, but for me it's not (and I use both platforms quite happily at work) and my preference is Windows. Others like Linux, others OS X, etc etc.
As to running both - many PCs could run OS X if Apple didn't restrict it - I'm sure you're aware of Hackintosh, so because Apple is more restrictive in their licence it's a negative to Windows? I don't think so, Plekto :-)
It's not like OS X or Apple hardware never fails. SBBOD is an acronym for a reason, and people pay quite good money for Apple Care programs - because they know the hardware can and will fail (it's the same basic hardware as PCs, same failure rates). It's pure fantasy to suggest that OS X or Apple Hardware is magically immune to problems. If you use it because it suits you then it's right. If you use it because you drank too much kool aid, you're making a poor decision.