It's one way of looking at MMOs (and related industries), I guess. I'm aware that Warcrack has a GPD higher than some countries, and that there was a point (I haven't checked, it may still be true) where the virtual currency in Eve online was worth more that the currency of Iceland, where the game is based, but they're both entirely virtual, and I'm not 100% convinced that we're going to get the ability to rapid deploy and re-use these things in a full physical-world context (that a full EaaS would need) any time in the next five years.