[In this personal opinion piece, Japan-based journalist Nayan Ramachandran considers Capcom's challenges with making Street Fighter IV more approachable for casual gamers, and why fighting game enthusiasts often reject those accessibility efforts.]
Street Fighter IV seems to be successfully straddling that bridge between casual and enthusiast for now, but it is hard to tell if it will have the staying power that past titles had.
Hopefully, companies like Capcom, SNK, and even Rare can see that there's some room for more casual titles. Releases like Tatsunoko vs. Capcom (released for Arcade and Wii only in Japan) show that Capcom knows how to make a more casual fighter and is willing to, but there needs to be bigger strides. Hopefully, the fans won't sneer when that happens.