I still find amazing that Zwei is coming to Steam, how much it has progressed the platform on getting japanese games.
It is indeed great we are getting so many Japanese titles, and that the PC is more and more a platform Japanese developers and publishers look into when releasing their games.
Sadly, we are still missing a lot of things, especially in terms of re-releases of older arcade/console titles (for example, Hamster's Arcade Archives series, or their SNK re-releases, which have been released on pretty much all platforms, except PC), something I'm hoping may change in the near future.
As I get older, and find myself with less time and patience to play long games, these arcade titles, be it Shoot 'Em Ups, or for example Side-Scrolling Beat 'Em Ups, are something I find myself drawn to more and more.