FreeDOS is cheaper :-)
Long Live FreeDOS!
https://freedos.org/
Unfortunately FreeDOS (as expected given the nature of the project)
progresses very slowly. I would love to see FreeDOS become a full fledged
MS-DOS 7.0, would have/could have/should have been, replacement. I still run
DOS 6.22 for almost all of my DOS needs. Not sure what others like to do
though.
-Ali