Is it really possible that someone will be interested in buying or selling virtual real estate?
Come on, seriously?
Of course, this is the future. You just look at modern games. There for beautiful pictures pay money. Here the project shows an economic model. Many companies will create their own virtual stores. Many photographers can become popular thanks to Mark.Space. There are so many opportunities. It's only begining.
A recent incident with Crypto-kittens shows us that society is ready to pay a lot of money for intangible pictures. Virtual reality is only at early stage of evolution and there will be many unusual ideas in this segment, I'm sure.