My Parents are in their eighties and my Mom has a bad knee. Recently, it got to the point where she started having a physical therapist that come to the house. After a couple of sessions, the therapist said she needed a Walker.
My Dad's a retired Lt. Colonel so they have Tricare. Danged if it didn't pay for the whole thing. I had to pay the whole $300 for mine.
I have no idea how it's supposed to help my Mom get around but you gotta admit that any health insurance that will buy you a Walker is awesome!
Update: The first comment on this one will probably make you chuckle more than the silly joke.
Update II: I deleted the stupid comment. It was too stupid to have come from a person.