Came across a very good , simple to understand comparison between AWS and DIY (Do-It Yourself)
DIY
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AWS
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Scale Up
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Elastic Service(On-Demand/ When needed)
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Assume Reliable Infrastructure
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Assume Infrastructure Failure
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Diverse Technical Expertise
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Application Based Expertise
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Application Unaware of Infrastructure
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Application aware infrastructure
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High Upfront Cost
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Usage Based Cost
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Design, Build, Operate
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Limited Knowledge/ Shared Support
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Showback , charge back challenging
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Showback , Chargeback can be achieved by granular monitoring of usage
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