These pop up for about a week and then sell for $300 consistently. I think it's more of a Social Media toy/thing. Still these are getting super hard to get and selling for more and more.
Sony PVM-5041Q Trinitron 5" Color Video Field Monitor. I tried a Galaxiam video game on it and the colors are very nice and vivid (looks better in person. Than my pic), great for old school retro gaming. Great for video editing, Security Monitor, etc. Comes with Power cord.