I know what you mean. But if you were the CEO or Boss of a dev team wouldn't the potential loss of 2 Million sales scare you? It sure would to me.
Of course, a loss of two million sales would scare anyone. You're not framing those figures properly.
But the fact of the matter is that you are not losing two million sales since there is no guarantee that every single PSP owner is going to purchase whatever game your making.
Discounting 2 million potential purchasers may be a hard pill for you to swallow, but would you rather not making something because of those two million, or would you like to make something for the potential 50 million?
I think you know what the answer is to that question.