This is from Dan Pinchbeck, writer of PC indie story/thing Dear Esther, while giving a presentation at GDC earlier today.
For reference, the full quote is below:
Of all the turds in the pipe, this is the granddaddy. Games are not too expensive. If you go to the store to buy granola and accidentally buy horse shit, getting six boxes for free is not extra value. Games do not need to add extra content to be a better value. I used to spend a long time pumping money into slots as a kid with this. 'The gameplay never changed, there was no kind of like change in the experience, this kind of stuff I played it, I put a lot of money into it because I loved it.