One issue I never see discussed is the role of the "Institutional investor". That is to say, there are a fair number of funds out there that may (or may not) hold AM shares in their portfolios. It is a bluechip stock in the bitcoin world after all, even with low dividends.
I cannot really state with any certainty what effect they may have, but I would assume it is non-zero.
There is no such thing as a blue chip company in the bitcoin world; and even if there were, ASICMiner certainly wouldn't be one (cf. 2nd gen fiasco, current reliability of earnings).