I'm sad to see this comment, scoffing at an independent creator just selling something cool online. I wonder why this reaction? Is it the imagined profit margin? Or just the choice of words in the listing?
The listing says it's a 43" 4K Samsung display, which a quick look on Amazon shows goes for at least around $270. They also offer free shipping, so shipping is effectively included in the price. I don't know how much walnut or acrylic costs, or desktop CNC's.
The price doesn't seem unreasonable to me for a turnkey complete package, since I don't have the skills or tools to make this myself.