Market perceptions are powerful things. I remember my dad was sold on the "Chrysler" marque, and nothing else mattered. Back when they came out with the "K-car", he decided he wanted one. Couldn't be the Dodge or Plymouth version, had to be the Chrysler. I'd seen the line down at Jefferson Ass'y, and they were all identical, outside of the model name sticker. Literally built on the same line by the same guys from the same parts, the only difference being in the labeling on the rear deck and front quarterpanel, along with a some minor detail in the taillight lenses and grillwork, which were interchangeable. Didn't matter. To him, Dodges and Plymouths were crap, and Chrysler made a Good Car.
Household appliances are often the same way. When it comes to stoves, fridges, washers, dryers, mixers, microwaves, etc., the manufacturers are so inbred it borders on collusion. There are nowhere near as many manufacturers of those things as many believe - each finds a specialty and builds for all, changing marques, cosmetics and packaging/paperwork as needed to satisfy the decision makers mommies market.
There are certainly guitar players who are that narrow-minded and believe "if it's not a Gibson, it's CRAP!", reality be damned. How do you put a price on that kind of loyalty? It's worth defending, because $$$.