Considering you offer football, how much effort would it take for you to offer baseball as well (as has been mentioned elsewhere in these threads)? Basketball o

Considering you offer football, how much effort would it take for you to offer baseball as well (as has been mentioned elsewhere in these threads)? Basketball or hockey seem like good candidates as well. I figure the logic is similar, no? Admittedly, I haven't analyzed the logic, nor do I understand the marketplace, but it would seem logical to extend to the popular sports for other seasons (just find friends that are interested in those sports, and pay them something for their domain knowledge). Edit: On second thought, maybe the schema would be similar but the logic quite sport-specific.