wrong .
you come of cycle and no matter how hard you train or diet you will quickly shrink to your natural self...which won't be much ...
What you're saying has some truth to it and what the others are saying does to but I don't think anyone is taking in one of the biggest factors.
Once you come off, like Sev said, you will start going back towards your natural self. However, your natural self should not be what it was once before...you've still been lifting and eating right, if you hadn't been on cycle and you ate and lifted right you would have still made gains. Point being, if you do things right, you shouldn't be all the way back to square one once you come off...just like if you were natural you would still make gains.
So a lot of the gains, although the AAS helped out a lot, they still came from two things and it was these two things that played the biggest role...food and weights.