This whole thing really just feels like a way for a corporation to own a singer instead of having a person with that pesky free will. I hate being the old man, but I just don't get the appeal.
I'm not sure if it makes you an old man. I could totally see where you're coming from. Record labels notoriously don't like treating their artists like humans so why not bypass all that by just dealing with an artist that isn't human at all? Disgruntled musician doesn't want to go on tour again? Well, let's just replace them with a robot who won't whine.
But is eliminating the human factor really a bad thing? I mean, it's nice to have a singer my niece can listen to that isn't going to have a breakdown or start yelling racial slurs or do cocaine and wreck cars into shit. Not until vocaloids get a lot more advanced, anyways.