The watch looks empty to me. I much prefer 5524. So, in your case I would choose 5565.
You are essentially paying for the name; the movement in 5522 is nothing new or particularly special. The case is too big and let's face it, the stainless steel for Patek is never going to be as durable as the steel in Rolex.
There is no bubble to burst. It is the matter of supply and demand. There are a lot of people who are prepared to pay over the asking price to own a Patek only to complete a set or collection. Look at 5711, it is not even a limited edition and yet the prices have gone mad. The dealers are only responding to the demand in the market.