you should make a megacolony deck.
fun, challenging AND inexpensive!
more seriously, though- if you want to change and you don't want to play anything that's TOO common, it might not be a bad idea to switch over to GP. lots of people are hopping off the bandwagon to get onto the Dragonic Overlord, The End express, so if avoiding the crowd is your thing you'll want to stay away from Kagero.