How are you managing with 13 channels?

Actually, that's not really true at all. You have an egg carton with 6 eggs in it, the other 6 being empty. Does cutting it in half really save you any time taking eggs out? in the end, they're still all in the same carton.

Oh but it is.
Cutting it in half reduces the space it takes up by half, it also takes less time to take out, and takes less space once it is out.
When it comes to servers however, seeing as the server would have to handle all information from 19 channels, instead of 13, it will reduce lag greatly.