Shortcuts can haunt you
If you set up an alias, it may save you time NOW, but when you forget the actual command because you never type it out anymore, or worse, go to someone else's router that doesn't have your little shortcut, you are hosed.
I keep the abbreviations to a minimum because everytime I type it out, it reinforces it's self.
Saving two seconds to type in a command is not a valid savings in my mind for what it could cost you later on.