I came across an article recently by Jeff Atwood about getting rid of the I'm Feeling Lucky button from the Google home page search interface. I actually think it's quite cute. All these years and Google still would look incomplete without it.
It's one of the aspects of branding. Once you get accustomed to seeing a brand with that look, you just wouldn't have it any other way. The new Google favicon (for those of you who have noticed it) is a blue 'g' and that is so not Google-like. It looks like a cheap imitation. A fake. A phishing site.
If you would like to read Jeff Atwood's article, check it out at: