These threads are always loaded too.. I've got friends who would say every guitar they've ever gotten was perfect out of the box.
If they had showed me those guitars out of the box I would not have agreed at all.
My thought exactly.
I own ~25 guitars or other stringed instruments. From those 25, two arrived perfect out of the box - my Fender Jeff Beck Strat and EVH Wolfgang Special. Maybe the Beck wasn't perfect - I bought the neck and loaded body separately from Stratosphere and then screwed them together myself. No other setup was needed, though. Even the trem springs were perfectly tensioned for 9s.
Conversely, I have bought multiple guitars from most of the sites in the OP and all of them needed to be setup. My CV Starcaster had the worst setup I have ever experienced, which I posted here at the time.