Board Thread:Japanese VOCALOID discussion/@comment-27435761-20160604211934/@comment-90.203.245.57-20160605164542

You're probably forgetting that some VOCALOIDs have technical advantages over others so they're not exactly 'duplicates' of each other - take GUMI/Megpoid, kokone & Chika for example. Their voices match each other quite closely yet they have certain things that make them different enough to be on the market (such as GUMI/Megpoid being more 'artifical', while Chika sounds more realistic). Although you could probably achieve making GUMI/Megpoid sound as realistic as possible; the reason Chika is there is for more ease for the people who may find it time consuming to achieve that goal.

The same could be said about Rana & Unity-chan! - although their voices are also pretty much identical, they're built to sing for specific genres that the other was incapable of performing.

Also may I remind - that in Japan; some people don't actually buy the VOCALOIDs for the voice but rather for the character/avatar (such examples can be how although Luka V4X got a bad reception at launch people still bought her because she is 'Megurine Luka').