Okay, true to form for me, I kinda go against what seems to be the popular idea here.
The way I see it, too many games take themselves WAY too seriously. The big AAA games are almost always like this, and what's worse, this is often followed by a REALLY TERRIBLE STORY. JRPGs, to me, being by far the worst offenders here. Though, basically anything can do it. And everything is all drama and emo and blah blah blah.... ugh. I tired of it a very long time ago.
So for me, something like BD that had alot of humor in it is a breath of fresh air. Finally, something that doesnt take itself super seriously. And considering that most games cant give me suspension of disbelief to begin with (due to the afore-mentioned bad storylines and game mechanics that then go against established story ideas WAY too hard), this bit really doesnt affect me much. I'm alot more likely to want to read something funny in a game rather than.... anything else. Really, it's gotten to the point where for gaming as a whole, I now just outright dislike storylines entirely. I like my shmups, which often dont HAVE a story. Or if they do, it's something like: "Blast off and destroy the evil Bydo empire!!! EXPLOSIONS LASER KABOOM!!!" and that's the entire thing. It's so much better than listening to characters drone on and on and on and on and on while being as dramatic as possible or while being really cliche'd, or both. All to try to suspend disbelief in a game where hiding behind cover for 5 seconds heals freaking gunshot wounds. I just... I cant take that seriously, I really cant.
So anything other than that really is a very welcomed break from the normal crap. And these days, I really just dont get interested in the storylines for things otherwise and will often not have the foggiest clue what the story for a game even is. There are occaisional exceptions, but they're rare.
I forgot where else I was going with this.
