I just paid over $2000 to find out I don't have throat cancer. Also have insurance. That's just the cost of a 5 minute laryngoscopy and a 10 minute CT scan.
You can get charged thousands just for showing up an an ER, seeing no one but the receptionist, receiving no treatment whatsoever, and leaving in exasperation after a multiple hour wait without any sign of anyone having any intention of administering to you in the slightest. I've seen it happen personally. America!