Would you pay for a one way ticket to planet Mars?

Curiosity Rover on Planet Mars. The landscape shows plots will not be on sale there any time soon. Photo by NASA.

One of the biggest problems we confront everyday as human beings is that we never get satisfied. Once we achieve one goal, we look for higher ones.

Once you buy something, you want another one. Once you get a service, you want another, or repetition; think of haircuts or meals. That behaviour keeps the economy humming with demands for new goods and services.