EMA's latest research shows that 68% of enterprises are in the process of evaluating container technologies. Why is everyone today so fascinated by containers? It reminds me of the OpenStack-mania in 2013. At the time I was convinced that VMware had set out to crush the hype, while IBM, Rackspace and a ton of VC funded startups oversold OpenStack to the highest degree. I still have my collection of USB sticks with OpenStack distributions from Piston, Mirantis and friends. Claiming that all I had to do was plugging these sticks into any piece of metal and I'd have Amazon EC2 running right under my desk was not a great idea and ultimately lead to a degree of frustration that made the Microsoft and VMware tax look attractive and ultimately turned Amazon Web Services into a $4.5 billion business.