Over here, they're called "Decap organs". Decap is the name of a local manufacturer. Three brothers spent a lifetime making these. They went out of fashion in the late sixties. Yet they're still being made today. A lot of the new ones are exported to Japan. From 1.250€ to...
They were mainly used in dancings, not on fairgrounds. Too big, too expensive, too hard to transport. They also sounded a bit better that the ones in the video. Some had a built-in Hammond organ.
The old organs sell for a lot of money these days, even if they weren't really rare. Obviously, restoration is a lot of work too. You can even buy CDs with the music from these instruments. Hec, there's even vinyl for sale. A bit of a hype here, now that most of them are gone. There's even a small museum dedicated to Decap organs:
https://www.vrt.be/vrtnws/nl/2019/0...m-in-westerloo-onterecht-onbekend-museum-num/
There was another manufacturer, Mortier. They ended production in 1952.
Current production no longer uses paper rolls for the music, but discs. There still is one dancing that operates a Decap, "Parasol" in Velzeke, Belgium. And there's still one fairground tent too.