I agree with a Bitcoin bank so long as it merely an iteration of a "safe" , no fees except for an annual yearly price of let's say $25.
Never any fees!
You can't say that, holding such big bitcoins will be hard to supervise. And how will they hold our bitcoins? In one bitcoin address? That is ridiculous, I better hold my bitcoins to myself than letting other hold it, that way I can manage my own money without blaming others when it has problems.