Yeah this. Capcom released Fate/Unlimited Codes over seas and it didn't sell that well (Nor is it tournament played), was also lack of marketing and it wasn't a big release.
Poverty fighter aimed at a niche target audience with "shitty graphics" (People in Crawley believe this).
GG and BB have almost no marketing outside of Japan.
GG hasn't had a new disk release in ages, game looks outdated, etc.
Very hard to get into generally (More so GG).
SF is a very long running series in and outside of Japan, people know of it more.
MvC has Marvel cast (Western audience) and Capcom, who are widely known outside of Japan.
BB and GG are made by a smallish Japanese company, Capcom are fucking everywhere.
The whole community should save up the money to buy a satellite or some shit that gives 1,000,000,000 bars to everybody around the world and allow PS3, PC and Xbox uses to fight each other.