Soup tureens look great, but unless you routinely make soup for a large crowd, they're too big and take up way too much room. They're primarily show pieces, as far as I'm concerned -- a lot like big punch bowls. You don't need one in a home. They're great for a church kitchen, but most people don't need one in their homes.
I have a glass cake stand and the domed cover flips over and sits in the foot of the pedestal and makes a punch bowl, but that's for a small party, like 10 or 15 people. Doesn't hold that much punch, but it's definitely a multi tasker, so that works.