> If you are going to use these on a computer at all you need some sort of high refresh mode. Things like scrolling and typing are just way too annoying without it.

I hate scrolling and hardly ever scroll really - I just use multiple vertical displays to fit every page fully, only switching pages. Surely this whole discussion thread can't be fit in a screen but I'm perfectly comfortable "scrolling" it with PgDn.

I'm used to slow-response typing (waiting for seconds before a word I typed appears when using modern software on old PCs). In fact I don't even look at the screen when I type until I finish a sentence - despite typing fairly fast I have a habit of looking at the keyboard. I don't mean this is a right way to type yet it proves seeing characters displayed immediately is not essential.