That being said, I can't accept the "we're selling surplus inventory because we don't want to scare the bitcoin community with a 51% attack" argument (not saying I'm right, I've just been running this around alone in my head and honestly am interested in hearing others views on the subject). With my experience with software and hardware, I can only see the network and power management complexity double with double the hashrate. At 200 th/s, it seems odd (in my mind) to think there is feasible infrastructure in place to deal with it.
It seems strange not see this discussed more and I'm honestly interested in a fruitful discussion about it.
Assuming that AM haven't gone higher for the reasons you've articulated, what do you think the fix would be? Deploying kit in separate data centres? Having multiple pools for solo mining? I think I've read that they are in 2 data centres at the moment, or at least they switched from one to another.
It appears that the hardware selling, while reasonably successful, is not going to shift vast quantities of blades (unless the price drops over time), so AM are going to have to solve the problem of deploying vast quantities of blades, if it is in fact the issue that they have at the moment.