They're also generally faster to launch and surf (unless you're doing a lot of updates, which requires double buffering and is still very dependent on your terminal's performance).
You also have to be more clever to pack information in a smaller section (typically < 100x100 character space), and you avoid unnecessary graphics that are distracting.
Yeah. Thinking about it, the appeal really to me is that I don't have to give a shit about fonts/colors/etc. I only care about the data. I'd live my entire life this way, if I could.