"The size of the tax cut was certainly enough to significantly affect the economics of a datacenter investment." So without a tax cut Apple would have just let

"The size of the tax cut was certainly enough to significantly affect the economics of a datacenter investment." So without a tax cut Apple would have just let users suffer? Hardly. Users drive DC investments, not tax policy. There's no tax cut in the universe that's going to get Yahoo to build a new DC in Nevada.