I have wanted a wine cellar ever since I moved out on my own. Now that I actually have a basement, I think a cellar is in my (hopefully somewhat near) future. Nothing feels more homey or more comfortable than a wine cellar! Every Friday evening coming home from work would feel like dream (or perhaps, every evening, haha). Mine would be small, just a single wall with some cabinetry and a sink, table and chairs. I especially love the deep earthy ones that feel like a little hobbit hole.
And seriously, how cool is this?? It wouldn't work in my house though because Alfie would get his little dirty paw prints on the glass doors :)