I think people confuse airport congestion with security holdups. Carry-on x-rays have been mandated for a very long time (long before 9/11). And people always had to walk one-at-a-time through the metal detectors. What's happened over the last 25 years or so is a massive increase in air travel in the U.S., without a corresponding increase in airport capacity.
> Carry-on x-rays have been mandated for a very long time
You didn't have to wait so much. You didn't have to go barefoot. You didn't have to go through the "get naked" machine.
Edit: I think there's also a lot of inefficiency. So often I see a huge line, half the equipment sitting idle, and half the TSA agents standing around talking to each other. I don't remember that sort of thing in the before times. Maybe because the security people were employed by private companies motivated to get their money's worth.
There is also no guarantee that the precheck line will be open at the airport for the time you visit.
Sure you want to pay for a confortable flight that will not make you feel totally exhausted or in bad shape once you land. Would you travel from US to UK while standing up because it would be 50% cheaper? with no toilets ? and a 100% fee for luggage ? because after all, you "only buy it for the privilege of being flown from one area of the country to the other".
I remember a time when consumers believed their interest was the best possible value for their money. Now we have a generation who justifies the worse business practices "because corporations must maximise profit for their shareholders" ? How is it in the interest of the consumer ?
For a 23h trip, I'll definitely get the better option I can reasonably afford.