KH-V, I need YOUR help with a project!(What appeals to you about Vocaloids?)

Hey guys!
I am doing a project on future trends and I am looking for some statements/opinions.
If you like Vocaloids I would really appreciate it if you could answer the following question(s):
Why do Vocaloids appeal to you?
or in other words
What do you like the most about Vocaloids?
It only needs to be a couple sentences and the more statements the better!
Thank you!

P.S. Sorry if this is in the wrong section.=(