Build versus buy.

A few years ago I was working on a contract negotiation with Splunk, and we kept running into what felt like a pretty unreasonable pricing structure. They wanted some number of millions of dollars for a three year license, which felt like a high price to pay for thirty-two ascii characters in a particular sequence. Even with the license, we'd still be the ones operating it and paying for the capacity to run it.

We decided to negotiate by calculating the cost of running our own ELK Stack...