Valid?... That's cute.
From day one, Apple have consistently focused on closed, user-friendly systems, rather than the power-hungry switchboard mechanics you get from Windows and Linux. If they lost their way at any point in their history it was in the nineties when they attempted to cater to the open PC market.
Since the iMac, Apple have continued to push for intuitive, and purposefully limited computer designs. As a professional artist, illustrator and 3D animator, who uses an array of heavy-grade software on a MacBook Pro everyday, I can honestly say that I don't want, nor should I need, an airport of big-boy options. Give me something simple and constraining so a real professional can just get to work.
Straw man alert: I didn't say I wanted 'an airport of big-boy options', what I said was 'Great power AND great design'. However, Apple's obsession with thinness is choking off it's ability to give us more battery life, better video cards, more powerful processing.
All I'm asking is that they have a true 'pro' line that doesn't compromise those things as much as Apple does, for the sake of thinness. They can still have their 'consumer' line that gives the other 98% of the people the thin stuff, since they don't need any more power.
I work in video, and as illustrator and 3D animator, I'm sure you would also love to have a Mac laptop that could render faster, composite faster, etc.