Mainly to show your support for Bethesda.
I'm skeptical about buying it. I can probably spend an hour or two watching CK tutorials and 3 hours applying what I learned. Problem is I only play Skyrim 5-8 hours a week, I don't think I have the time. I'm not much of a modder, but I do have some experience modifying skins on my own. It is possible to build a small shack/house with console commands too, only difficulty is decorating it afterwards.
To be honest to everyone, I hate kids. I can barely stand those brats in Skyrim except for one in Old Hroldan and the twins who sell Dwemer parts. I don't think I can tolerate a kid in my basemant. Based on the trailer, the kids seem shallow like wives and followers. You just give them allowance and allow them to play outside, what else?
One thing that the modding community can never achieve is to make new characters and quest with good voice acting. Very few audio mods out there. If hearthfire contains at least a few new quest, 5 dollars isn't much.
I might get Hearthfire as soon as I watch some gameplays on X360 or if Beth gives more info.
And if you are a member of the pc super race then you should be able to throw away €4.99.
Reminds me of EA's BF3 forums