If you can give a person a superhuman power, how much would you charge for it?

this is not a troll question, or maybe it is, but it's just for fun, we can all share our imaginations. don't take it seriously. so please, don't answer with your judgment, but simply just answer it. the wilder it is the better.

back on topic, here's the detail :

let's say you have a power to turn a person, just a single person, to become some sort of a superman, that includes the ability to fly, etc. now you want to sell your service, one time only, for a price, how much would you charge for it?

the payment can be anything, it could be a sum of money, object (includes an island or even a country), or even special privileges (e.g. become the next president).

now the strict rule is, you cannot charge it for something impossible (although all of this is impossible) like "i want the earth/moon/sun" or "i want the universe" or "i want my deceased loved one to come back to life", just no, nobody can give those kinds of things to you, so will not have a buyer.

and this is NOT about inheritance, you DO NOT have the power, so cannot keep it to yourself either, you can only give it to another person.

let me give you an example, my personal price is :

i want a library containing all the books in the world about science, history, and all documents about scientific research/results, all historical documents. and everything is also includes the forbidden/banned ones, no exception. i love science and history, and all that curious documented secrets.

so, have fun with your imaginations.