There is a fundamental error in your question and survey. You only refer to a one-man creator.
It is enough to have a small studio and four employees, and you need a floating license and the situation becomes completely different.
Then the comparison becomes completely different:
Maya: € 2,231.77 per year
3Ds Max: € 2,231.77 per year
Houdini Core: € 1,685.00 per year
Houdini FX: € 4,218.00 per year
Cinema 4D: € 724.79 per year (compared to Maya and Max: - 67.5%, compared to Houdini Core: - 57%, compared to Houdini FX: - 82.8%!)
Therefore, the price of Cinema for studios is very competitive. Even if you need to buy an X-Particle or other renderer.
But of course, maybe for individual artists the price should be special with some limitations. The only thing I fear is that many people do not follow these restrictions. For example, 3D Max Indie allows you to participate only in projects up to $ 100,000, but freelancers with such licenses, although they do not earn such a qut, do 3D work for large large project clients and cause unfair competition.