I have found that the time invested in learning how to use a tool is far more valuable than having a tool with a few more features. So with that in mind, I choose to invest my time and money learning how to use open source tools.
I would much rather be an expert in an open source tool rather than some tool that only runs in Apples ecosystem. (Just in case one day I can't use Apple hardware for whatever reason.)
Krita is tops. Blender is awesome. Inkscape is getting there.