Double the Necks=Double the Usefulness?

It's no doubt that you've probably seen a double neck guitar at some point, and while it does look amazing, one may wonder: Is there really a point in having two necks? Doesn't that seem kind of pointless and heavy? The average person only has two arms, what good does having two necks on a guitar have?

Double necks seem to have become more of something similar to a fashion statement than an actual practical instrument, as the general thought is something about how cool (or ugly) it looks. The practicality in the instrument is the difference of the necks, something commonly overlooked. Most double necks are usually a combination of a 12-string and 6-string guitar, which an average listener probably won't be able to differentiate, again leading to the "This thing is just a giant hunk of wood" argument. However, to a guitar player, the tonal capability of having both 6 AND 12 string necks is a great benefit to have. As a side note: some guitars have more than three necks, but each neck fulfills a separate purpose, in this case, a combination of 6, 12, and a fretless neck.

 Add with this a recording loop, and you have a trio of guitars playing at the same time, all without picking up three different instruments.