I am not from the US. Had my close relative fight with cancer. If not for the government which sponsored it almost fully, excluding a couple of procedures like PET, it would cost our family a lot. Just for the scale: pial for one infusion of one out of three drugs would cost us $8k and my relative would’ve needed 16 infusions.
They made a really good documentary about this a few years ago:
https://en.wikipedia.org/wiki/Breaking_Bad