American Medicine - addicted to technology?

As a physician practicing in America, I am moved to comment on a troubling trend in modern day medicine. The medical community in America is addicted to technology. American doctors seem to be unable to diagnose anything without ordering tests.
While we should, on balance, be quite greatful to the technologies of MRIs, CT scans, and sophisticated laboratory tests that allow precise and rapid diagnosis today, we should stop to cast a critical eye on whether such techology has produced atrophy in our clinical skills. Like an evolving creature that is now able to fly and develops atrophic legs, American doctors know how to order the right test based on any symptom, but need quite a bit of hand holding to diagnose anything without such tests.
In the field of rheumatology, in particular, I see younger trainees and even established physicians who are not comfortable diagnosing a patient with rheumatoid arthritis without ordering lots of serologies, xrays, and sometimes even MRIs. Certainly, in circumstances such as early disease, the diagnosis of conditions such as rheumatoid arthritis can be tricky, and lab studies such as the anti-CCP antibody may be helpful. But do we really need to order a slew of tests on everyone?
Another aspect of medicine in which the impact of technology is stark is cardiology. The average doctor today can't figure out a heart murmur if his life depended on it. Echocardiograms have replaced the need to listen to anyone's heart.
We as a society and the profession of medicine needs to look closely at the ills as well as the benefits that technologic developments have produced. By training physicians to actually think and diagnose without complete reliance on technologic studies, one might find an impact on the growing bottom line of medical costs today.