[quote name='The 7th Number']15 bucks for dawnguard? I read someones review saying it wasnt that good. That you explore caves you were already in before, and other vampires fight you even if you are a vampire. is it worth getting?
I played Fez demo and i didnt like it much. My problem was trying to remember all the doors ive already been through, and how to get back to where i started. LOL[/QUOTE]
There are some caves similar to the regular ones at the beginning but there are different ones after that. All of the new locations don't show up unless you have the DLC.
Even if you're a vampire lord, yes, regular vampires will aggro you. The main vampire clan, of course, has political drama so there's that also.
There is a dwarven dungeon related side quest that will take you to ones you've already cleared if you've explored them already to find new items that magically show up with the DLC.
I think it's totally worth it if you're a Skyrim fan, especially at $15. Just make sure you make a hard save before you go into the vampire lord castle for the first time.