Call of Duty what?

Here's a new Borderlands trailer, it introduces us to the game's main baddie, Handsome Jack. It's a handsome trailer indeed.

I've heard that the first Borderlands was really heavy on the co-op and not as much fun to play single player. I hope that's not the case. I'm not a big fan of playing co-op games with strangers on-line and almost none of my friends are available to play when I am. Oh well, first world problems right?