I'm telling yas its
$399 PS5 DE
$499 PS5 disk version
$599 Series X
$299 Series S
Sony knows $399 is the sweet spot and they want to recreate that mic drop moment from when they announced the ps4. They would obviously take a hit on the DE version, but they'll be able to compensate by overcharging for the disk version. Of course, the disk version isn't going to cost $100 more to produce, but it would be pointless to sell 2 different models if there's only a $25/$50 difference between the two. It's called psychological pricing. People won't feel that's Sony's console is too expensive as they can buy the ps5 DE for $399. But once they're in the store probably loads of people will think "ahh well, might as well get the disk version for that lousy 100 bucks more."
MS seems to be marketing Series X as a premium console, which means it will probably come with a premium price. Since they also don't seem to care about how many Xboxes they'll sell, and which one you're buying, I don't see why they would be willing to take a hit on each console sold. Imo Series S will be their mass market console and official successor to the Xbox One S. Series X is more like the X1X, a niche product for those who demand 4k/60fps and are willing to pay for it.