Why did people enjoy Borderlands?

I'm not trying to insult anyone that actually enjoyed this game nor am I trying to insult its producers, it was just hard for me to get into it for more than an hour at a time. For starters, what was up with the graphics? I suppose they tried to make it look like a comic book or something to add to its comedic nature, it just didn't seem like a good idea to me though. Secondly, the plot. Aside from the fact that throughout the game you're playing in a region that you have practically no knowledge of regarding its history (thus making it difficult to embrace) your entire game experience consists of you being manipulated by a satellite and going after a vault that you know nothing about: the fact that there was a monster in it was also a horrible let down. Thirdly, aside from quests, was there really anything to do? I enjoyed Fallout because, while there are plenty of quests, they don't restrict you to doing them constantly nor do they restrict you to confined and segregated areas; it actually allowed you to explore a vast area, not just dinky villages. Fourth, the mixing of genres. To me, this game was an amalgamation of an FPS with a bit of dark comedy with just a tad of RPG mixed in; they would have been better off just keeping it as an RPG in my opinion. Not that this is a major issue, but the fact that everywhere you went there was porn was incredibly distracting to me. Also, why were vehicles even needed? If anything I believe Fallout should have had vehicles to get around in, it's not like there are many open areas in this game that require extensive navigating. The only good thing I found about this game were the character abilities: most of the weapons were certainly nothing special.