I know multiple people who have told Google recruiters that they are not interested on the basis of their famously drawn out and disrespectful interviewing.

Of course, Google is one of the top names in tech and has already employed some luminaries many developers would love to work with, so I'm sure that they get some leaway to treat their interviewees poorly, but for people with other good options, there's not a lot of appeal to being sucked into one end of a very long, very painful funnel.

Having said that, Lazlo Bock has some interesting things to say about hiring in an organisation like Google.