There are costs to testing, financial and otherwise. For example you take someones family history, and other risk factors into account. There is a 1/100,000 chance that they have cancer. Then you add in the symptoms, fatigue, and minor aches and pains. That brings it to a 1/50,00 chance.
We don't have the money, technicians, or machines to run an MRI on everyone who shows up to the doctor with a problem that has a 1/50,000 chance of being cancer.
Then for many tests, with such a low prior probability, a positive test has a higher chance of being a false positive. So now you patients with massive anxiety out over a positive that has high chance of being a false positive. And you need to send them or further more invasive anymore expensive tests, that have real risks of harm.
A guy launched a car into space; I think we have all this stuff but we — as a society — just don’t find the business case for “poor people being alive” very compelling.
You are incorrectly calculating the “value of the appointment” from precisely the wrong viewpoint. Remember that healthcare is about the patient’s health, not the bill.
It's also just so wildly irrelevant to the topic at hand
Multiple times she was turned down for breast cancer screenings, she was told that she was too young (33 at the time). It was not until she had requested that the doctor write a note of their denial, along with reasoning, that they finally gave her some screenings.
It was stage 2(3?), it had affected several lymph-nodes, but she was lucky that she persisted and did not just say “oh ya it’s fatigue”. When I ask her about how she knew, it’s always the same response, that it was just a feeling, that she knew something was not normal.