Out of this last generation of systems, I got the ps2 first then the Cube and last the xbox. Now with the new systems I might do it : Xbox, Rev and last the PS3.
I continue to pick up the rare games for the ps2 but haven't played it in many many months. I am the most interested in the Rev, but it will be a long wait so I figure I will get the Xbox to hold me over until the Rev comes out. Just really ticked at the new price point M$ is trying to push.