Thank you all for your replies. This is very encouraging to hear. I hope to join your ranks someday!

I've recently started playing around with HISE and I am pretty amazed at what it can do. I think I'm going to start developing a commercial plugin with it. The HISE community seems like it is growing and I know there are already some commercial plugins built with HISE. I wonder how many people have been able to turn their passion for HISE dev into something that significantly contributes to their income?

On a somewhat related note, does @Christoph-Hart develop HISE in addition to working a full time job? If so, that is unbelievably impressive! In any case, thank you @Christoph-Hart for building this. I think it opens up some very interesting possibilities.