I happened to see a book at a local bookstore: "Violin, the most versatile instrument in the world."
Now I haven't read the book, but I happen to think that the most versatile instrument is the GUITAR.
Think about it - a nylon string classical is tuned the same, usually, as a solid body electric, or a Martin dreadnaught, but it's not just about different styles and repertoire, the playing techniques are very different.