One of the few companies imo that I think do DLC right is Bethesda, sure, they had a mis-step or two with Oblivion (Horse armour, I'm looking at you) but Fallout 3/NV and Skyrim got it generally right, though oddly I found more value in the Hearthfire DLC (Mainly due to gathering mats by mining myself and buying the odd bits of ore I could find from Vendors) than I did, say, Dragonborn.
One big point for Bethesda was ease. Add to cart in Steam, pay, it updates the game. I would actually probably have bought some of the DA DLC but too much messing around. Buying Bioware points to buy the DLC is just annoying. For this reason, I only bought one and couldn't be arsed again later when more was released.
Ditto for the DLC that was sold through GFWL, for such as Batman AA or AC (If you bought the boxed copy, not the Steam version) and the original Bioshock games.
Also, I've held off buying Borderlands 2 in a recent Steam sale because I clicked it and there was a list of 30+ DLC. This game isn't the only offender but it's one that does come to mind from recently. I'm not gonna sit there and try to figure out which is fluff and which is extra missions etc.
Lastly, keep it simple. Ubisoft and EA are bad for this, several different editions of the same game and later selling the bits as DLC. Trying to figure which DLC I had included from purchase of various AC and ME games and which I didn't meant doing quite a bit of research to ensure I didn't buy something I already had depending on where I'd purchased the game or which bundle it was in during a Steam sale. Have somewhere in the game that I can clearly check which DLC I have already.
One big point for Bethesda was ease. Add to cart in Steam, pay, it updates the game. I would actually probably have bought some of the DA DLC but too much messing around. Buying Bioware points to buy the DLC is just annoying. For this reason, I only bought one and couldn't be arsed again later when more was released.
Ditto for the DLC that was sold through GFWL, for such as Batman AA or AC (If you bought the boxed copy, not the Steam version) and the original Bioshock games.
Also, I've held off buying Borderlands 2 in a recent Steam sale because I clicked it and there was a list of 30+ DLC. This game isn't the only offender but it's one that does come to mind from recently. I'm not gonna sit there and try to figure out which is fluff and which is extra missions etc.
Lastly, keep it simple. Ubisoft and EA are bad for this, several different editions of the same game and later selling the bits as DLC. Trying to figure which DLC I had included from purchase of various AC and ME games and which I didn't meant doing quite a bit of research to ensure I didn't buy something I already had depending on where I'd purchased the game or which bundle it was in during a Steam sale. Have somewhere in the game that I can clearly check which DLC I have already.