I didn't mean that they were poseurs for disagreeing with my opinion. Everyone is free to do that of course (and often does). :)
I see hundreds of Apple laptops a year in my job, being bought by all kinds of people for all kinds of uses and in my experience, over the long haul, and on average, almost no one buys a 15" or a 17" MacBook Pro, although the 15" is far more popular than the 17". Those that do (again IMO), tend to be show-offs, or concerned with having the "biggest/best" laptop in the room far more than they are concerned with issues connected with actually using the machine.
All the real pros I know are more likely to be using a 13", or maybe a 15" if they need the screen size. I would say the majority of the power users and the majority of users in general have already moved to MacBook Airs. The 17" MacBook Pro is just over the top for almost everyone (only 1.6% of all Mac laptop users have a 17" model by the numbers in the article).
When someone comes into my office with one of these beasts, most of the staff kind of roll their eyes when the person isn't looking as it's usually someone with more money and more pride than they have common sense. It's not nice to hear perhaps, but it's true in my neck of the woods anyway.