Sure those exist. 1) How many are there? 2) it seems like you are usually not CPU bound. The people I know doing this spend 20 minutes waiting for a video to

Sure those exist. 1) How many are there? 2) it seems like you are usually not CPU bound. The people I know doing this spend 20 minutes waiting for a video to render than 6 hours uploading it to youtube. In most cases their bandwidth is a limiter 10x over their CPU. (Plus most of those people are on Mac anyway, so they don't even get this choice)