I was mostly kidding, but the world is a very scary place. My concern is, how do I know you'll send me to a place with airport security guards, clerks, marshals, etc? I personally do a ton of research into airlines, hotels, car rentals, etc wherever I travel, even domestically. I've booked places (especially pre internet) that turned out to be total shitholes, and I have traveled to places where security is lax, human rights aren't a guarantee, and officials expect bribes.
I love the concept of a mystery vacation, but I would need to trust the booking agent completely because I'm literally putting my safety (and the safety of my family) in their hands.
Making it a lottery does not foster trust.