I remember reading where someone called entry level AR's as hobby AR's. That made me laugh, because I think 98% of the upper end AR's that most people buy are for hobbies. It's not like anyone here is buying an AR to go to combat with.
I have seen were PSA and others were put through the passes and had no problems. There was a guy over at CalGuns that did ungodly things to a low end PSA rifle and it kept going. He finly got it to give up after shooting it a few times with a 12ga.
The one big cost factor on an AR is the barrel. If your shooting 100yds or less, just about any decent barrel will get you by. But if you want that 1 MOA rifle or if your shooting at longer rangers, get a better barrel. PSA does offer nicer barrels.
But then there are those that have to have a name brand or spend a lot of money, just to say they have a better gun.
I have used PSA for several builds and never had a problem.
Now there is that one company that some think make the greatest AR in the world, but that same company has had financial trouble for years. PSA has only been growing.