For no good benefit? Try comparing the display to a HoloLens 2. There’s no current display technology that’s cheaper and allows you to see through while projecting the light at the same intensity. You can search it up.

Heavier, too. It’s about as heavy as the competitors despite having a separate battery.

It’s not necessary to have the external screen.

The Quest has passthrough cameras to allow you to see the world with stuff displayed over it too, but Apple has decided that simulating eye contact is important.

It’s Apple’s unique selling point here, but they’d have what sounds like a high-quality headset without it.

To allow eye contact for social interactions. If you want ubiquitous AR in real life that is what you need. This is an attempt to achieve this with current technology and it “almost” works / near miss / fails spectacularly.