To prove your point, I believe the last time I went to an ENT to get my nose cauterized for bloody noses cost my insurance around $500 or so. That's for a 5 minute "procedure" I could easily do at home with the right equipment.
Yeah one of the benefits of the NHS, even with its problems, is that you can just roll up to a doctor/dentist whatever and if its something simple that requires slight medical intervention, or a cheap prescription for instance, there's no drama around insurance billing or bureaucracy. Now, on the other hand, you need to go to the ER, you need actual surgery?