For users that care, a 1TB PCIe SSD currently costs a mere $230 (for the Samsung 970 EVO on Newegg, which has pretty impressive performance). Sure, that's sligh

For users that care, a 1TB PCIe SSD currently costs a mere $230 (for the Samsung 970 EVO on Newegg, which has pretty impressive performance). Sure, that's slightly more expensive, but it's nowhere near the premium Apple are charging. On the other hand, users who don't need the extra performance still have to pay through the nose for it - and arguably the difference between SSD and HDD is more important from a user experience perspective than the difference between SATA and PCIe.