Databases licencing per core is the most ridiculous thing I've heard for me. In this case they have zero marginal cost and still charge you for it. Hilarious.

> In this case they have zero marginal cost and still charge you for it.

A license has zero marginal cost in the first place. Software distribution over networks have a negligible marginal cost. An ebook as zero margin cost. We are constantly paying lots of things with zero or negligible marginal cost.