Bwayfan292 said: "Does the general public read reviews though? Or do they just go cause a show looks cool?"
There isn't a yes-or-no answer, and I think it's very different with a play than with a musical. Smaller shows or shows without stars rely on rave reviews (and, later, Tonys) to stay alive. Look at The Humans, Band's Visit, Oslo, Fun Home, Come From Away, and even Hamilton (though that was also the audience reception). Then there are the shows that didn't recoup, but the reviews helped them in the beginning (Dolls House 2, Hand to God, Groundhog Day, Carousel).