I just don't understand this? You would think a business model such as MB's that is motivated by commission from winning wagers would offer all sorts of sporting events from the most popular to the most obscure. But they don't.
No WNBA, no arena football, no CFL, soccer, rugby, etc.....
I am not a business man or anything and maybe I am missing something here, but would not you want to put up as many sports as possible so that you can collect commission since there is no risk to you?