It’s more similar than you think:

Flying low cost only carriers is like going to a clinic. You’ll get to your location, or get your care, but it won’t be pleasant. Flying business class or first class is like going to a concierge medical office or a medi-spa. Not only will you get to the location, you’ll have a great experience on the way. Flying coach on a major carrier is like going to the typical doctor. It used to be nothing fancy, nothing great, but pleasant enough. Now it is horrible. As the airlines get squeezed, and as the doctors get squeezed, and as we the consumers let everyone know that we care only about cost, the experience is becoming less and less tolerable.