only if it's something very insignificant. the main reason I didnt buy Mass Effect 3 was because of how bioware CUT a part of the game and sold it off as DLC. that means, instead of working on the game itself, time was spent on DLC, which could have been spent making the game better. whatever time spent on DLC is time NOT spent on the game, and used as a cash grab. Borderlands 2 was how to do it right: you had a preorder bonus to get a DLC character "When it's done", which means they weren't working on it during development of the game, and time isnt spent taken away from working on the actual game itself, but instead, working on it AFTER the game is done. The only thing that I consider tolerable would be like a gun skin or something of that sort, because after a good time into development, the art team has nothing left to do but make textures or just sit around doing nothing. if it's just a skin, that's fine, time wasnt taken away from working on the actual game, but if it's something like an exclusive mission, or a building you can only access through preorders, then no thank you, that was made during development and should have been in the game in the first place.