This really doesn't answer my question. Your opinion is not what I am looking for.
As far as your comment goes in regards to the passport card, that it "really isn't a whole lot better than a birth certificate" I have to ask why is it that the government requires the same documentation for the passport card as for a passport. Why is it valid for as long as a passport?
The restrictions are quite different I must say. But the same documentation that one has to submit for a passport has to be submitted for a passport card and the same processing time applies as well.
It seems to me that you take your title "Cruise Guru" to the extreme. You might want to think before you reply.