One of the boots below is an orthopedic walking cast identical to the one I had to wear for three months after I broke my foot while walking slowly on even ground (it was the most anticlimactic bone-breaking ever). The other is a creation from Stella McCartney's line for Adidas, valued at $250.
Pretty tough, no?
An email from my dad this morning: "Depending on how you think about it, the walking cast probably costs over a $1000 in uninsured dollars. With the other you at least get two 'walking casts'." Excellent point! I think we've found the first bargain from Stella McCartney!