When I asked them about it they said it’s the Samsung 970 Pro.
Which is 2+ times cheaper anywhere online plus they retain the old drive.
I guess it’s some kind of noob tax or they just follow Apple’s example regarding upgrades.
Yes it is special and has more freedom, for example you will be free from more money in that case.
It is more expensive because they have to use their hardware sales to fund their development. You pay a markup on the hardware to support all the developer time of creating a privacy-respecting, open-source line of devices and services. Though now that their services bundle is out, the cash from those subscriptions should help fund things a bit better, so you may well see a drop on laptop prices in the near future.