DLC is somethign that became insanely popular in the 7th generation but it has ended up being a double edged swords. On one end it is great for multiplayer games like Halo, Killzone, and Call of Duty so it keeps bringing you fresh experiences. On the other hand it has allowed developers to release unfinished games and DLC also has been over-priced more often than not.
Anyways what do you guys think. I both like it and dislike it but without getting into a lot of details I'll let you guys talk :)