I'd like to know why Sony was allowed to turn off our ability to install other OS'es on the PS3's we had _already_ bought. That's like if the dealership showed

I'd like to know why Sony was allowed to turn off our ability to install other OS'es on the PS3's we had _already_ bought. That's like if the dealership showed up with a mechanic and said they changed their minds and want the turbocharger back.