I've been selling clips at shutterstock for 8 years now, but I've never earned $300 from a single footage sale. That would mean they payed $1000. What kind of license was that?! 

I had a similar price sale last year for a video.
By pure chance i then found the use - it was on a huge advertising billboard above a shopping mall in Kuala Lumpur.

So things like that i guess.

I think last year I had *a* video sale for something like $150...

kind of makes up for all the $0.60 "increasing your market share" video sales from there too...

What if they distribute a few at random, so that we talk about this on the forums and they will entice more people to submit good contents? Like winning at the lottery!

Thanks all for the replies. At first I was afraid that it might have been a bug or something, I'm glad it has happened to others.

I also want to be clear that sales have been catastrophically bad at Shutterstock since last year, and increasingly so.