As the parent, I'd like to say... my entire argument isn't that top-of-the-line laptops are too expensive for what they do but rather that
(1) older macbooks are identical to mediocre new laptops in performance & price
(2) medicore laptops are very cheap for what they do
(3) desktops are far more economical when you need power.
If you spec out a laptop to be both powerful, light weight, and as beautiful as a MBP then you're going to pay a real premium. Paying for premium things is not the default.
That's why companies aren't giving out 5+year old laptops/desktops.
(well, I suppose some do, but big companies simply wouldn't)
I assume the whole context of the thread and assumed you were defending the parent.