Nintendo, Your Restrictions On Demos Are Just SillyS

I downloaded the demo for The Wonderful 101, and was surprised to find this message pop up telling me that I would only be allowed to run the demo 20 times. Now, of course I don't plan on playing a demo more than once or twice, as I'm sure most people don't. Which is why I find it so odd that Nintendo would put this restriction in place. If any game is good enough that I would play the demo more than 20 times, then I'll be buying it to play the full experience before ever getting to that point.

There's a theory that game demos actually hurt sales, but no evidence that having a demo and limiting its uses would be any different than a normal unlimited demo. So readers, have you ever played a demo more than 20 times? Have you ever gotten so much out of a demo that you never felt the need to buy the game?