All Clad Slow cooker--What is the difference between the regular one (white) and the deluxe (black) model?

Question

I am thinking about buying an All-Clad slow cooker. There is one for $149.00, and one for $249.00.
It seems the only difference between the two is that the more expensive one you can use on the stove and the oven.
Does anyone use one of these models?

http://www.williams-sonoma.com/products/sku8894693/index.cfm?pkey=xsrd0m1%7C15%7C%7C%7C0%7C%7C%7Celt%7CElectrics%7C%7C%7Call%20clad&cm%5Fsrc=SCH

http://www.williams-sonoma.com/products/sku8260341/index.cfm?pkey=xsrd0m1%7C15%7C%7C%7C0%7C%7C%7Celt%7CElectrics%7C%7C%7Call%20clad&cm%5Fsrc=SCH

Answer 1

The difference is the Insert - the less expensive unit is ceramic and the more expensive one is aluminum - personally I don't like the residual taste aluminum leaves when making any acidic dishes like lasagna or stews with tomato - so i own a ceramic style.