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.
Vocaloid 3
Throughout pre-Vocaloid 3 release promotions, SBS stood by a claim that you can recreate English with SeeU's Korean voicebank, and in Dec 2011 even went so far to say SeeU is actually "trilingual", although the comment seemed odd as SeeU had only two voicebanks. In Feb 2012 they stated that they were working on a full English voicebank. In August 2012, SBS reported that the recordings for the voicebank had been completed and was now going through a tuning process. Her English VB will be similar to an append and her design slightly adjusted. On February 4, 2013, in response to a Korean fan's question about the progress of English Voicebank, SBS posted a reply that the development of English Voicebank is on hold. Due to Dahee being incarcerated in 2015, SeeU English is not expected for a long time.