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This appears to be a standard LCD monitor (albeit a 4:3 aspect ratio one) in a retro styled case.

Neat, but no substitute for a real period-accurate display. An actual CRT will make retro stuff look so much better, as it was intended for that type of display.

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I was thinking maybe 4:3 panels might be hard to come by today, but looking on amazon, they seem to be available, so ya. Might be neat if they had a built in CRT "filter", like running it through a raspberry pi with one of those CRT emulators or maybe FPGA to automatically give it more of a CRT feel.

They don't need CRT filters. They need pamels able to display more than 16 bits of colour. (my UHD TV comes close, my old TN monitors are crap in this respect)

Filters like that would look cool, but would introduce at least 1 frame of latency, which isn't great, especially if the input is 30i or similar.

Do CRT filters actually need to buffer an entire frame, or is that just commonplace because it's the easy way to do things when you're implementing them in software? It seems like if FPGA based upscaling with CRT emulation is in scope, it shouldn't need to delay the signal by more than a few scanlines.

You don't need to add that much latency if the display is capable of some kind of GSYNC-like mechanism and a high data rate.

ok, we'll all just go to the CRT store, where CRTs are sold, because they're still made.

They're not, but all-digital 17" 4:3 displays with input lag and a need for external A/D converters to hook up retro systems are still being made.

The authors of this ask for a pretty hefty premium to hide all the off-the-shelf components in a custom-made case.

(And CRTs are still around aplenty on ebay and the likes.)

Eizo and other still make high-quality IPS displays in those sizes and form factors (and even more exotic ratios like 1:1), so I'm not sure what the supposed market is.

you not understanding the market means nothing. every display has a market, because non-standard displays are made to order.

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