Only once did I 'play' a vampire and that was in MW which had 3 clans to join to make it more interesting. Course eventually I cured it and really didn't use that character for much else. Why? Well becuase I just don't see a hero as being a vampire.
Dawnguard looks interesting, but other than a few added items everyone can use, it looks like this DLC is basically just for vampire fans. There are vampire fans, I get that, but there enough to build the whole first DLC around them?
I can just think of so many things that are more 'Skyrim' related than vampires. Were-creatures for one thing. Skyrim is known for them. I would have loved a DLC that would allow you to join the Silver Hand and hunt down all were-creatures in Skyrim (including some in a certain faction). That would have been Skyrim related, that would have fit right into the main game. It just feels like this DLC caters to just a small vampire fan-base who would rather be playing some other vampire related game.
Will this DLC 'fit' in Skyrim? Thoughts?



So now with a vampire centered DLC, I cannot wait 
