Re: WYSIWYG is the problem
For just entering and reviewing text, you only want a good keyboard and an uncluttered display. If I had only to transcribe my imagination into text, I would be happy with GRRM's setup. Internet is a distraction.
Does Wordstar have an 'autosave' feature'? I would just have to get back into the habit of using a keyboard shortcut at the end of every paragraph.
Though I do rather like the 'document map' feature in Word, I understand that GRRM employs a super fan to help with character continuity and the like.
The author Will Self uses a typewriter. He explained that if he were the write "A maroon car sped by..." he won't be tempted to waste time by popping back to make it a "burgundy car", as he might if he were using a word-processor. He doesn't need a UPS or autosave feature, he can't accidentally save an edited version over an original etc... True, he might lose his draft in the case of a house fire or burglary, but these events are rarer than a BSOD or a file management error on the part of the user.