The core thing is that some people STILL like it -- including people who never lived in that era, and could trivially buy 3 30" monitors.
And not because of primitivism reasons ("who needs fancy IDEs" etc), but because of a quite concrete reason: increased focus.
In the era of 1000 distractions for programmers, it's perhaps more valid than it would have been in 1984. Then, if you had dual monitors, they'd still show just your code, some log, some documentation, etc. At best, xeyes.
