Very few are named like that. Most of those mentioned earlier I've not ever heard of, and I live in NY. (Though not NYC.)

The real reason most of the stuff is cheep is the US is a "buyer beware" country. If you buy something and it breaks a day later, the seller, in most cases, has 0 liability or obligation. Some may help you out, to keep a good reputation. But unless you have a written warranty, you have no warranty, at all. If you do get a warranty with something, it often comes with a separate wagon to hull the legal document home, despite being printed in 5 point font. Expect lots of exceptions, limits, and very little actual "coverage".

Cheep tech sounds great, until you have that tech die on you a month in, and find out your "warranty" doesn't cover it or expired 2 days ago. Then that tech just cost you 2x when/if you get another one. Not quite the deal it's being made to be...