The arcades that is viewed in US is different than the one viewed in Japan other Asian nations that are the primary imports of Japanese fighting game making companies. US arcade is viewed as a place inside a movie theater or a bowling alley that is mostly empty and is $0.75+ per game. Asia: crowded place where people watch, cheer, challenge each other, and play with $0.10~$0.20 per game.
Plus, if they release a pc port at the same time, they would profit a ~little~ more in US as US will buy software once released regardless of whether it was released simultaneously with the arcade version or not, while losing the entire South Korean market, which is pretty big. Do you play with an official MBAC bought from Japan? If so, that's great, but 99% of South Koreans won't do that. It's safe to say that after MBAC for pc has been released, 99.999999999% + or - .000000001% has downloaded it rather than buying it.
Also, I have played in arcades at South Korea for a long time, wasted so much money
. But I can say this for sure: it sure beats any online battles. Any game, even something like fps that are played mostly online, are a hell of a lot more fun when played in the same room. Rather than talking over headsets, yelling at people and pumping your fist after a win is more exhilarating.
P.S. Yeah, arcades cannot generate enough profit, but it's impossible to change its structure. Net Cafe's cannot provide any of the arcade experience as the policy of net cafe's are to be quiet so as to not bother people who are just trying to check e-mails.
Edit: Oh yeah, I screwed up my sentence structure. I meant that 99.99999% of Koreans didn't officially buy it. The entire Korean pc package game industry died out in SK as everyone downloaded them illegally.