I'm actually not so sure about this. Apple's gross margin target is in the ballpark of 38-40% and a savings of $200-800 per MBP would have a substantial upwards impact on that gross margin number. Apple carefully sets pricing to achieve a target gross margin without impacting sales too much (higher price = higher gross margin but likely lower net revenue because they're priced out of the market).

One of the two scenarios (or perhaps a mixture of both) are more likely, and I lean towards #1:

1. Apple decreases the price of the Mac to stay aligned with gross margin targets. This likely has a significant upwards impact on revenue, because a drop in price like this opens new markets who can now afford a Mac, increasing market share, driving new customers to their services, and adding a layer of lock-in for iPhone-but-not-Mac customers.

2. Apple uses the additional budget per device for more expensive parts/technology. They are struggling to incorporate technologies like OLED/mini-LED because of the significant cost of these displays and this would help open up those opportunities.