Sizzix Big Kick, Big Shot and Fabi
I have the original Big Kick. Since Sizzix is putting out dies, I wanted to try one. The Big Kick was bought so long ago and things have changed, I asked Sizzix if you needed a new cutting platform to use the dies. I got an almost immediate response from Sizzix saying the machines are totally compatible and you don't need anything but what came with the Big Kick originally.
If you do have the old machine sitting around, you can try the dies to see if you like them or using a die cutter at all.