Cloud computing tends to shift spending from capex to opex, as companies buy computing as a service rather than in the form of physical servers. This may allow companies to avoid large increases in IT spending which would traditionally be seen with new projects; using the cloud to make room in the budget might be easier than going to the CFO and looking for more money.Of course, this doesn't mean that cloud computing is always or necessarily cheaper that keeping applications in-house; for applications with a predictable and stable demand for computing power, it might be cheaper (from a processing power point of view at least) to keep them in-house.Cloud computing spending is growing even faster than expected