I'll be honest, I hate DLC in general. Maybe I'm biased on this, but I believe that the good old times when everything, from the regular content to bonuses, were already inside the game, were the best. Now not only the average game costs much more than in the past (70€ for a brand new Xbox360/PS3 game here :V), you also have to spend more if you want to get the bonuses (which sometimes are deliberately too tempting to pass up). The worst though is that now some games' levels or even endings are DLC themselves, just look at Asura's Wrath. Too bad that most companies know that gamers are willing to pay extra, so they charge extra, like "you want to enjoy your game fully? hand over the money", which I feel is insulting to the customer among other things.
What happened to good old expansions.
I guess you could call them "DLC of the past", since they provided additional stuff for a price. BUT, they weren't mandatory, now with DLC you might as well say "ok I bought 2/3d's of a game as a physical object, the remaining 1/3 will come out one day as digital stuff". That's bullshit.