[chronal]

I just want to note that Capcom, another Japanese company, has managed to make Street Fighter an Esport starting with Ultra Street Fighter 4 in 2014 and continuing now with Street Fighter 5. They did this by having a qualifying circuit for their Capcom cup tournament at the end of the year which had a prize of $250k for 1st place. It's nowhere as big as the 3 you mentioned, but I think that's mostly due to size of the scene.