Have you ever bought/sold land on the Moon?

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As you may be aware, lots of people sell land on the Moon, and lots of people hve bought land on the Moon. Moon land sellers have been featured as a comedy item on many television programs and in magazines. Some claim that noone owns land on the moon and that they have claimed it and have the rights to sell it. Some sellers, such as Dennis Hope, have made quite a lot of money. I think many people buy the land as a joke and buy land for other people as novelty presents. I signed up for a Lunar real estate affilate program run by Dennis Hope's company. This disappeared (I did not lose any cash!), so I signed up for another - the Lunar Enbassy. I have not made any money yet. Has anyone else made any money selling Moon land, or bought any land on the Moon?