No, people come with a list of what they want to get out of a particular pickup or amp or whatever and the guys here help them, often by suggesting a bunch of different products by taking into account the goal said person has said they want to achieve.
People rarely come and say 'lets argue about single coils vs humbuckers' with no specific context. I mean, I can say, "i like humbuckers, because they 'buck' hum". Does that really help? maybe slightly, but it just opens up a more complex debate about tone vs hum compromise. Humbuckers hum less than single coils/P90's.
And you've been in a "few" shops, but none stock a guitar that has a humbucker in the neck? In 2011?
You started this thread to learn about the differences between a humbucker and single coil in the form of a grand debate? You should do what Wez suggested, and then people will be able to help with clear concise points relevant to your goals, rather than just waffling about personal preference which, when it comes down to it, you might actually disagree with.