I myself haven't bought any dlc on my life.Some games I just leave buying because I know there will be GOTY edition (fallout3,borderlands etc) and I get it for cheap price then.I find it just wrong to buy something when  that should be there or later to be downloaded for free since you frikkin paid for the game already.

I will very rarely buy DLCs and am only guaranteed to if I intend to play that particular game a lot.

For some games. Online map packs, definitely, but certain games like Skyrim and Uncharted 2 I wait for the GotY.

.....Oblivion....Free Halo Maps....and Pinball tables for Pinball FX2....

I haven't yet.

I generally don't buy DLC unless it's a game I play all the time. In fact...the only DLC I've ever bought was for Halo Reach. I would have gotten Bad Company 2 DLC but the map packs were free, and Battlefield 3 hasn't come out with any yet (that you have to pay for). Sooo... No I don't really buy DLC.

No, I never have and likely never will unless they implement a model where you're forced to. Then again, I would likely just stop buying games if it came to that.

I bought all the DLC for Oblivion, Castlevania LoS, Dante's Inferno and I will buy all of them for Skyrim.

Aside from free DLC I have bought a few Rock Band/Guitar Hero songs and Halo 3/Perfect Dark Zero maps, but that's pretty much it.

The latest purchase was about three years ago though.

I hate DLC