"Let me tell you about the very rich. They are different from you and me. They possess and enjoy early, and it does something to them, makes them soft where we are hard, and cynical where we are trustful, in a way that, unless you were born rich, it is very difficult to understand. They think, deep in their hearts, that they are better than we are because we had to discover the compensations and refuges of life for ourselves. Even when they enter deep into our world or sink below us, they still think that they are better than we are. They are different." (The Rich Boy, 1926)
All of the information normal people--like you and me--use to price transactions like this is completely irrelevant. Rich people have access to many services and price structures that are completely different than normal people. Any guess about what it costs to make a transaction like this via normal channels is likely completely wrong (other than "free", assuming they are doing business with the bank in question).