I'm kind of tired of the way multimedia is displacing text on the internet anyway. In some of the other forums where I participate, people post links to videos instead of typing words to make their point. I guess it's faster for them, the lazy sods, but it means I either have to ignore that particular contribution (which I do more and more frequently), or spend 5 minutes listening to, or worse, watching, something which I could have extracted all the relevant information from in 30 seconds if it was simply a typed version of the same string of words.
I recognize that there are times when visuals really add something necessary to a presentation, but that's often not the case. If charging for bandwidth leads some of the video bloggers and podcasters to make text versions of their wares available to boost the number of consumers, I'd even be willing to consider it at home. Which is the only place it would impact me, because other than texting to Google on rare occasions, I don't use my phone for internet.