According to Wikipedia, the four most popular team sports in North America are American football, baseball, basketball, and ice hockey. Some popular individual sports include motor sports and track and field.
Yes I think they should. For them it is a job. They work at it just as much as most people do with their jobs and it is harder that most peoples jobs. It only makes sense then that they get paid for it.
There are many sports in North America the most common are: basketball, football, soccer, golf and baseball. There are also many less common sports that are very fun like badminton, hockey and many others. I just have to say my favorite sports are golf and basketball