Also, one reason a lot of people might not use video, is that you have to use the Roll20 voice then, and lots of people (actually all games I've been in, except one) use either Skype or Teamspeak. And while Skype allows you to have a video conference, it's not overlayed on the screen, so you'd actually see it while in Roll20. Way back when (when that one game happened), the Roll20 voice had lots of issues. People couldn't hear one player while hearing all others, but never the same one. (So Player A couldn't hear E, but C didn't hear A, but heard E fine). I'm not sure it got better, I sure hope so.