been doing a lot of cloud lately
lets just say that caas (computing as a service) should be rename caak (computing as a krock) now if one wants to so a real study of the costs and benefits of the cloud, check out the spammers using botnets.
Any opinions expressed by me are mine alone, posted from my home computer, on my own time as a free American and do not reflect the opinions of any person or company that I have had professional relations with in the past 55 years. meep