I'm a fan of F1 and I also live in the United States, so I welcomed the news about Haas the same way I welcomed the news about the stillborn USF1. There has clearly been a lack of traction stateside over the last couple of decades and the American "audience" is an interesting breed. Perhaps not much different from the global audience at large, but couple those two facts and it leads us to where we are today.
I can't help but draw an analogy to the pro cycling tour. Over the years the US had some minor entries and even some success with Eric Heiden with team 7/11 and then a good bit Greg LeMond with La Vie Claire. But even having a Tour winner it didn't take hold until the USPS team and Armstrong. US team, Texas boy... blah blah, and cycling took off stateside for real for the first time. Let's not get into what happened later.
But my point is, that to get the traction stateside that pro cycling got will only come with an American team being successful, hopefully developing an American driver along with it.