[afhof]

Being good enough also depends on the context that the video will be used in. For example, I have an HTML5 video site where closer to 100% of the audience is either FF or Chrome. Both support VP8 out of the box, which means I only have to keep one copy of the video to serve to all users. If I had to target more browsers, such as Safari or IE, I would have to keep two copies of every video in order to work on all browsers (or worse, use flash as a work around).

I am okay with the minor loss in quality, just for the ease of managing a lot of videos and a lot of disk space.

[shmerl]

Those who really lack support for WebM are mobile users who don't have dedicated hardware decoder and those who use crippled browsers like mobile Safari or mobile IE. Desktop users (at least in case of IE, not sure what's the story with Safari these days) can install needed plugins and DirectShow filters to support WebM. But the lack of dedicated hardware decoding in mobile SoCs remains a serious problem, since even when the browser supports VP8 decoding in software, it would be a degraded experience, especially power consumption wise.