For those of you who don't get it -- have you ever worked a job where you supported retail and industrial equipment? This isn't a dig or a set-up for a "then you don't know what you're talking about" punchline... You wouldn't believe what's still out there. Lots of ATM machines apparently still run OS/2! IBM just pulled the plug on sales not long ago.
Yes, but does this device solve that problem? I don't think it does.
Just because it has an x86 CPU doesn't mean it's going to be able to directly/easily replace any
of that hardware. eg. A lot of that equipment has special ISA cards to interface to the machines.
In all seriousness, support for these systems follows the path of least resistance. An old application from 1994 that does the job will not get upgraded until that old 80486 with fur clogging all its fan inlets vaporizes in a final puff of smoke. Even then, the owners will beg you to locate a direct replacement. Maybe because there is no modern software, or it's an $80,000 license with much more restrictive usage terms, and will require a Windows 2008 R2 server with MS SQL Server to store its configuration files. Often just because no one has the slightest clue how to re-deploy a new version. They've memorized buttons to press, the company (or person) that originally installed it is no longer available, and the business would be lost if they were forced to shut down while they seek new options.
Those people aren't going to balk at any of the dozens of solutions out there that have VGA, serial, parallel connectors built into them. The $40 price tag is meaningless to them if a $300 device has the right connectors and will work after an hour of fiddling.
OTOH, as the comments in the linked article said, this has the makings of a cool vintage gaming rig. I still have Mech Warrior and MW 2, King's Quest, Loom, Wing Commander, Castle of Dr. Brain, Willy Beamish, and a ton of other games that are getting harder to run on modern computers.
You could run it on a $150 Intel Atom Mini-PC. One of those might even have a video output that can connect to a TV.