[MechaGai]

I can honestly say you will enjoy more songs from the 7th version than all the songs you like in Waku Waku Anime Matsuri, but if you're going to get it for collection, then that's fine. Also, you're better off getting a newer version since they changed the drums again for the 3rd time, so get those since those seem to last a bit longer than 2nd or even 1st generation drums. 3rd gen drums were first bundled with Tobikkiri Anime Special, so either that, Wai Wai Happy Rokudaime or Doka! To Omori! Nanadaime bundles should be fine. Nanadaime is a year and a half old, though, so finding them new MIGHT be a challenge on play-asia.