What should I consider in my cloud ROI calculation before I buy?

When you set out to justify your cloud computing decision financially, it is easy to forget that in the physical world you need to periodically replace servers and update their applications with new licenses, things that might be included in the price of your cloud computing bill. "A restaurant that I am working with has 120 Exchange mailboxes," says Jamie Barmach, the President of JEB and Co., a network and services consultancy based in Chandler, Ariz. "We got a three year break-even point for their move to Google Apps, and this doesn't include ongoing Exchange server and software maintenance and upgrades, too." That return on investment was what won his client over to the cloud.

ITworld contributor, David Strom provided the response to this question.

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