I think televised poker is actually even more boring than NASCAR. - I don't think it's boring. I've never fallen asleep watching it like I have baseball & even football. I don't really consider it a sport but do think it takes talent (and a lot of luck) to be really good I don't know how it came to be considered a sport. Pretty soon they'll be calling chess a sport.
I generally agree on the opinions shared about hockey and soccer. Hockey's fan base will always be limited to places where the lake water actually freezes in the winter. In the Sunbelt, hockey will always have to be played indoors.
As for soccer, while its fan base is growing as the younger generations come of age, you'll be disappointed if you want it to generate the kind of fanaticism here in the USA that it does around the world. We just have too many other popular sports for it to compete with. And honestly, while it may be a great sport to play, I don't think it's one of the better spectator sports. To the uninitiated it can seem like two teams kicking the ball around a field for an hour and a half, and when one team's defense finally gets tired, or they make a mistake, a happy accident happens for the other team and the game ends 1-0. That's the way many Americans still view world-class soccer. I personally feel it's a much better sport to watch at the amateur levels, kind of like
basketball - love college ball, hate pro ball (I miss the Magic/Bird era where every game was like the Finals).