An out of state LLC registration in Texas is $750, plus you have to give them a credit card up front, so they can charge you $1 per name search on a web forum to ensure that your business doesn't conflict with any existing business. Though, they will refund that money if you end up registering. Mostly, this is to say that even in "business friendly" states like TX, registration isn't necessarily cheap or friendly by comparison.
Yeah most states will be more like $100, even $800 though... if we're on hacker news and probably talking about tech workers... it is still a tiny amount of overhead cost.