Whence Private Clouds, and Why Amazon and Google Should Spin Off Cloud

After our article last week discussing the economics of moving into AWS vs. do-it-yourself (DIY), Jim Stogdill wrote an excellent follow-up about when enterprises aren't moving into the public cloud; Simon Wardley - whose strategic situational awareness mapping is in a category by itself and should be required reading for anyone responsible for strategy - continued with his input. In Jim's words, private clouds are like SUVs; they rarely make sense economically, but sometimes you buy them anyways because: