Now picture this: You're in your nicely decorated house, standing in front of your kitchen counter. Along the wall in front of you is your "cupboard" of SDBs and maybe a handy cabinet as well. On your counter are all your wonderful cooking tools - your spice mill, cutting board, pots and pans.
Unfortunately, right now you can't actually use the items unless you put them in your inventory. But wouldn't it be wonderful to stand at your kitchen counter, click on the spice mill sitting there, and up pops the selection window to choose which spice you would like to make?! It would "feel" so much more real to be able to cook in a functional kitchen instead from just tools in inventory bag/toolboxes. I actually get a little giddy at the idea.
Likewise, tools like the smelter and such would be great if we could use them in the house as well versus just in the inventory. I could make a nice, functional work shop.