Simple question, since when have you been all digital on PC?
The last boxed PC game I've bought was Deus EX: HR. Which is also the last time I've bought an AAA PC game at release. Nowadays I wait for Steam sales instead. Deus EX: HR was just a disc inside an empty box, disappointing. Before that I bought The witcher 2 which had all kinds of goodies in the boxed version.