I've made enough arrogant quotes on blogs in my day to recognize the backpedaling, but fine, I'll play along. You're defining the Mac or BMW as top-end. So I suppose you're the arbiter of what is top-end rather than taste. A Mac is no more top-end than a similarly priced PC, OSX no more than Windows 7, an iPhone no more than an EVO 4G, a BMW no more than a Lexus. Simply asking someone if they don't use a Mac or own an iPhone or drive a BMW doesn't rule out them having taste or, as you'd prefer to say it, having used a "great product."
I've used OSX extensively and believe it or not just like Windows 7 a lot better. I've used iOS extensively on my iPad (we design games for it) and like WebOS much better. I've test driven most luxury car brands and what I haven't driven, I have friends who own, and I like Lexus better.
Also you're wrong about Lexus, it's the sort of thing I suppose you'd have to own to understand. They have a vision: attention to detail. I think you'd especially appreciate it.
Everything about a Lexus is perfect. Every little feature is in just the right place and works just as you'd expect. Their GPS and other related software is best in class.
Where the attention to detail shows through the most is in the dealer experience. It's unrivaled. What Toyota knows that their competitors don't, and that car magazines rarely mention, is that the dealer experience is the most important factor in getting repeat business.
I've test-driven most of the luxury brands. I liked them better than, say, a Honda, and the dealerships were nicer, but it wasn't the same. Lexus outsells the rest not because it's a bit more luxurious, but because it's as near perfection as the automotive industry has come yet.