Pricing is actually surprisingly cheap. I would have thought for sure one license would cost thousands, but it's only around $600. Out of the range of the average hobbyist obviously, but easily acquirable by any small business.
Then a few years ago, to stem the tide from Arnold (which was 1000 euros per node), they lowered their price to this current $600 price point and free for academic/non-commercial. They kept MPC/Technicolor and ILM as well as many smaller shops, but the other major studios either have their own renderer (including Disney Animation!) or use Arnold.
You can also rent 10 nodes per week fot $50 (for example rendering on multiple nodes in a small render farm)
For non-commercial there is a free-non-commercial license so you can learn how to use it at no cost.