Seems that Google is losing massive $$$s on it, and apparently no current way to increase ROIs.

Maybe the porn tubes will have more to worry about than copyrights.
YouTube will manage to rake in about $240 million in ad revenue in 2009, against operating costs of roughly $711 million, leading to a shortfall of just over $470 million. This half-billion dollar loss comes after more than a year of feverish experimentation in various forms of advertising, cross-product embedding, licensing and partnership deals.
http://money.cnn.com/news/newsfeeds/...ed_2009_4.html