Oh snap! You just got served...on my vlog

Over the course of the weekend and into Monday 2 of my fellow grad students (let's call them Menna and Meffrey to protect their identities) took what was to be a simple activity like a meet-n-greet video introduction and turned it into an electronic video version of dueling banjos. The idea was to take a simple process--getting to know an unfamiliar person--and adding in a new media twist--video. So where am I going with this? No, I'm not marketing a new angle for eharmony.com. Could it be more reasonable to move away from written media to primarily visual media? With written media it is near impossible to decode tonal inflections and facial expressions (and since serious written media shouldn't have emoticons, there's a lot of room for interpretation). I'm sure at least once in your life you got a letter or email from a boss, coworker, family member, significant other, or friend and thought to yourself "did they mean x, y, or z?" Not only that, but have you ever had a battle with the spellchecker? With a visual media such as a vlog, we no longer need to interpret cave paintings but rather we can enjoy the full range of human emotion. We have visual forms of communication such as Skype video chat that further enhances our telephone experience, why not similarly enhance our email or blogs? Even video games show a wide range of emotions. The furthest back that I can think would be Doom--as your marine gets more and more beat up you seem him become more haggard and disgruntled. For me that just added to the intensity of the game. The transition to visual media seems like a good next step in the evolution of digital communication in a world that is increasingly smaller due to globalization, requires us to be everywhere, and allows us to be at the fingerstips of any individual with a computer or cell phone. A very convicted person once (well many times) told me that print media is not viable. Could it also be said that soon text media will no longer be viable?