Hatsune Miku
Since the success of her Vocaloid 2 package led to an expansion of marketing possibilities, most of the mass marketing has come after her initial release as a response to her popularity and has been on going since 2008. Even with the addition of other Character Vocals, Miku's name continues to be used as the primary source of marketing for Crypton Future Media, to the point where most products for their Vocaloid related products will usually only feature Hatsune Miku's name. In March 2012, the Nomura Research Institute estimated that the sales of all Hatsune Miku brand goods added up into the region of since her release in 2007. Her name is easily the most recognizable of all Vocaloids.
SF-A2 Miki
SF-A2 was released the same day as Kaai Yuki and Hiyama Kiyoteru as the 3rd Ah Software Vocaloid. SF-A2 miki's direction is very different from Kaai Yuki and Hiyama Kiyoteru as she was a professional artist vocal. Much of her planning and development was handled by HEARTFAST.