$40 for unlimited doctor visits? Sign me up

At prices as low as $40 a month, some medical groups are offering something that's cheaper than a gym membership, and just as good for your health -- unlimited access to their services without having to go through an insurance company.

The plans are called Direct Medical Care -- and go by other names such as concierge medicine, retainer-based practices, subscription-based practices -- and cut out health insurance companies by having patients pay doctors directly, resulting in lower prices because doctor's don't have to spend as much time filling out insurance paperwork.