https://www.pasadenanow.com/main/lab-in-emerging-biomedical-...
Here is a link for a 7 million suite to house one of the machines https://www.dignityhealth.org/sacramento/about-us/press-cent...
While costs for these machines are going down, even more expensive 7 and 10 Tesla machines are starting to be installed, going up to $14 million
Anyway, your estimate seems to be way off, basing it on a 6 year old puff piece for a cutting edge model that was deployed in a lab. The cost for a typical new MRI is more like $500k.
If you ask "How much does a car cost?" The answer is not "Here are some articles about people buying Lamborghinis that cost $250,000".
Most people are using a middle of the road 1.5 T machine.
If your point is that MRIs less than 3T exist, I agree. If your point is that cheaper MRI exist, I agree. If your point is that nobody has spent 3 mil on a CT, then I disagree. A link showing the price of used machines 10-15 years old isn’t going to change that.
You seem to be off by a factor of 5 or 10.
https://info.blockimaging.com/bid/92623/MRI-Machine-Cost-and...