I don't think having Target 360 has anything to do with getting the bonus. On the bonuses last week, my account which I just got the Target 360 for free last week did not get the bonus. However, my mother and my brothers accounts which do not have Target 360 did not get the bonus this time around either. But my sisters account which does have Target 360 did get a bonus this time (which is the one I used - she let me use her account).
So as I said, I think it is based on some algorithm and I don't think having Target 360 has anything to do with it.