Screens are getting boring. It’s really hard to impress anyone with stuff on a screen any more. However clever you’ve been. However much thought you’ve put in. However good the tech is. No-one’s impressed. They’ve all seen better stuff in ads and movies anyway - when will onscreen stuff be as good as that? Whereas doing stuff in the real world still seems to delight and impress people. Really simple stuff with objects looks like magic. Really hard stuff with screens still just looks like media.

http://russelldavies.typepad.com/planning/2009/01/meet-the-new-schtick.html