Interesting comparison between the demo footage showed off like 18 months ago (? I think that's it in a post of mine above from Oct 2011
) and the shipped PC version of the game:
A common consensus seems to be that the game blew the console memory budget (specifically the PS3 version, judging by a supposed Gearbox employee's post on Reddit) and so in the final hash together Gearbox did over the last few months to shove something
out the door, they scaled the whole game back (including the PC version) to get it functional enough to pass console certification.