Do not want. Also being on PS3, I probably won't even get the option to NOT buy it until next May.
I haven't had a file that owned a house in a long time, but I liked Proudspire Manor considerably.
I have no plans to get married in game again as I already had my trophy wife. I don't want children in RL, why would I want to adopt one in Skyrim? The only kid in the game currently that isn't a total ass is Mila Valentia's Daughter and if you marry her I guess you kind of adopt her anyways. How would that work out exactly? You can adopt and play with your adopted DLC kids, but your step daughter is just kind of there like a house cat.
I mean depending on the available locations, and architectural options it could be a very nice addition to the game. It just isn't for me.
My own bard would be nice I guess, assuming that they can actually sing. The guy in Riverwood, and Whiterun are okay. I forget which, but one of the most attractive lady bards absolutely cannot sing and I think its rather unfortunate. I'm sure it was intentional, but I would seriously pay her to shut up.
Having to fend off skeevers and giants isn't my idea of something I want to pay extra to experience. I never let dragons spawn in my game, but one advantage cities have is that they have guards and walls. I would hate to be one of those poor sods without a wall...