Google has said they leave the Lucky button on because people like it being there, not because people use it. Actually, only 1% of all searches use the Lucky button. It's left there to make Google seem more human and easier to relate to, as told by the woman-of-the-moment Marissa Mayer.

http://www.marketplace.org/topics/world/are-you-feeling-luck...

Funnily enough, 1% of Google's searches is still an astronomical amount of usage.

All the time. I installed a Chrome extension that triggers the "i'm feeling lucky" result when using the Omnibar.

I look up baseball player stats all the time, and the search on those site stinks. So I can just use the Felling Lucky on a query like "fangraphs jose bautista" and it will take me immediately to the page on the site I want. Saves me a click, since I'm usually pretty confident I know what the first result is.

All the time. I made it a search engine in Chrome, so if I type a ">" followed by a search term, I go directly to the first result. This is really handy for everything I read regularly: > hacker news > reddit > qc > boing > dangerousminds etc etc. Saves loads of time. Instructions here: http://productforums.google.com/forum/#!category-topic/chrom...

"I'm feeling lucky" is no longer usable for most people as Google Instant shows the first page of results as soon as you start typing (unless you have javascript disabled). Back in the day I don't recall using it for much either than Google bombed results as a joke (ex: searching for "french military victories")

The only time I used "I'm Feeling Lucky" was when I was searching for 'Weapons Of Mass Destruction" and it auto-linked to http://www.coxar.pwp.blueyonder.co.uk/

I think that circulated sometime around 2002.