For a lot of companies, 20% is an acceptable markup to pay, in return for not having to deal with hardware failures, delays due to ordering new hardware, not al

For a lot of companies, 20% is an acceptable markup to pay, in return for not having to deal with hardware failures, delays due to ordering new hardware, not always having instant failovers, over-purchasing for capacity/scale, the extra human dev ops costs, etc. If you're well-positioned to handle that, then great, AWS may not be cost-effective for you.