Or you could turn your existing computer keyboard into a bluetooth keyboard for other peripheral devices for a fraction of the cost: http://www.eyalw.com/1keyboard
What's special about this Logitech keyboard is the switch to select the pairing with 3 devices so you don't have to pair and repair all the time to use the device with your phone and then your tablet and computer.
I'm using 1Keyboard both with a Moto G and iPad mini Retina on a MBP 15'' Retina.