all DLC that is created in addition to the game's base content and preferably after the game's release is OK, IMO. pricing may be an issue but with promos and Steam deals you can get most DLC almost for free...
... that was the game with the new THQ business model, right? shipping a barebones game at a reduced price, with abundant PDLC available to tailor the game to yourself.
i knew this wouldn't work.
While the idea of tailoring a game to your desires sounds nice, unless of course it means taking away the ability to create and install mods, the value proposition for piecemeal content trends downwards most of the time.
Another reason DLC, especially the pre-planned kind, can go wrong is the example we have here at GOG with expansion packs being licensed separately from the game. Things like region restricted DLC are particularly frustrating.
Steam seems to be a rare haven for DLC, but even there you can witness its intrinsic issues. How often can you demo DLC, for example? As a bit of an aside, it's digitally exclusive nature is a big part of the problem. For example, if Steam has a deal on a four-pack of games, you can only take advantage of this deal if you haven't already bought the game for yourself. It suddenly becomes an issue of "can I play the game for myself first, to verify its value, or should I wait, so that I can actually take advantage of the deal?". Adjacent to that, is that the four-pack doesn't include DLC, so the other players you buy it for may be segregated if the DLC is not co-opted.