I prefer ads because, if they're a typical tracker disguised as an ad, I can block them without feeling even a tinge of guilt.

A few weeks ago I saw an ad on a blog post. I think it's the only one I've seen all year. I was so surprised, I looked at the source. It was just an image, hosted on the same domain, wrapped in standard anchor tag. It was even something I might consider using, a server monitoring service. I had never been so happy to see an ad.