I believe the price increase is purely based on the profit-maximizing strategy. If people will pay that much then Apple has no reason to ask for less. Unfortunately, I can not imagine myself switching to a Windows-based laptop. This is just another example of why monopoly is bad.
I agree that this is profit maximization, but the only monopoly Apple has is on sucking less than others at particular things that particular niches care about (privacy, UX, ecosystem integration come to mind).
A non-Apple device will do all the same stuff. It just might not do it the exact way you like out of the box.
I pay the Apple tax (albeit exceedingly infrequently) because I can afford it & it reduces friction in my life, not because I have no other options.