Economy 2.0?

I find it interesting how the virtual world of World of Warcraft is starting to affect the real world.

I'm not talking about entire real world organizations built around 'farming' gold and items which are then sold for a profit in the 'real economy'.

Or the fact that WoW has over 10 million subscribers paying real money to a real company (Blizzard).

I'm talking about this and this. Real world manifestations that cost real money of something that is completely virtual!

Will more virtual networks start spawning more real world value?

I guess there's nothing more subjective then 'value'. (Be sure to read the accompanying news.)