codemixture

No, it's rarely a choice, but having people (or even pets!) that depend on you is literally life-saving for many.

I suppose one could say that an pipe organ and a typical synth setup may have somewhat similar interfaces, but wildly different implementations.

Indeed – and not to mention Håkon Wium Lie, of CSS and Opera fame, who also wanted to build his own home organ, but ended up buying an entire organ building company (https://ryde-berg.no).