Had Longhorn development gone better, Microsoft could have put up more
of a fight against Apple’s OS X. ... Macs may be expensive, but you
can take your Mac to a local Apple Store and get it serviced if you
have a problem.
Um....what? More of a fight? Your local Apple store?
Compare market share of even Vista (yes, Vista) to OSX. And be aware that in the United States there are less than 300 Apple stores for the whole country. Less than 500 for the whole world. For the vast majority of people in the US and the world, there is no such thing as a "local" Apple store.
The two blockquoted sentences I started this reply with are notable for how completely divorced from reality they are.
Even today, OSX accounts for less than 10 percent of the market for computer operating systems. Significantly less. Had MS "put up more of a fight" there would be no OSX at all. (Recall that Bill Gates and MS effectively helped to save Apple when it was at low ebb both by investing actual money and by agreeing to continue to develop and support MS Office for the Mac. Fact.)
As far as whether there is any hardware in the Windows ecosystem that can compete with the Macbook Pro high end. of course there is. But the vast majority of Windows users don't want to pay thousands of extra dollars for high end hardware like that. And really, why should they? Apple hardware is nice, but is it actually worth the price premium? Not for most people, no. In fact, I'd argue it's not actually worth the price premium to almost anyone.