Apple is perhaps the most profitable company in the world right now, and yet you believe that they've gotten their pricing model wrong?
You could be right of cause, but it seems a little unlikely doesn't it?
There are huge short vs long term questions when it comes to profit. So, they might be maximizing profit over the next 3-5 years and I am very much an iPad and iPhone customer, but that does not mean their PRO line is optimized for long term profit.
I actually was all set to buy a new MBP for around 3k, but the last round's market segmentation pissed me off. They always have one cheap reasonable option and then charge an arm and a leg after that. IMO, they would be better served aiming for a 35% profit margin on everything vs the ridiculous upgrade costs for high end they currently use.
EX: 1TB PCIe-based SSD upgrade from 256GB + $564.00. When 1TB SSD's are running under 300$ and they are saving on the cost of a 256GB SSD. Think about it, if this was a removable drive you would not only save money getting a 3rd party SSD, but also end up with and extra 256GB drive. Which means they would still have a ~40% profit margin if it cost 300$ to upgrade.