Why should they drop them, though? The damage is done, the money is spent, and they can just as well wait it out now, to see if anything comes from it anyway. I

Why should they drop them, though? The damage is done, the money is spent, and they can just as well wait it out now, to see if anything comes from it anyway. In the worst case, it is a failed investment, and they will have plenty of those, and the reason doesn't actually matter, except in learning from it for the future. There definitely are things to get depressed about, I just don't think this is one of them.