Pricing doesn't make sense to me when you look at other options like just a regular monitor or even other portable monitors like (e.g. Dell 14 Portable Monitor - P1424). $200 tops and that's accepting there is a novelty premium.
fleaapples to pears... the p1424 isn't the same aspect ratio (16:9 vs 32:1) isn't the same resolution/density 1920x1080 vs 3840x1100 and isn't even a touch screen...
that said, this item is still $100 overpriced vs the exact same item on AliExpress...