There will be two categories of FSD use:
- Robotaxi
- Individual using FSD on their personal Tesla
Each Tesla could be dedicated to one of these categories or could be used for both, and that is where the pricing conundrum comes into play. If Tesla charge $50k for FSD, very few Tesla owners would purchase FSD if they are predominantly using it for their personal use. I assume that whilst it may be possible to earn $30k p.a. initially it will become increasingly hard as Tesla build up their own robotaxi fleet from lease returns (as mentioned by other posters) and hence the utilisation of individually owned Teslas to supplement the Tesla owned fleet reduces.
Pricing FSD out of reach of owners that use it purely for their personal Tesla would remove a big competitive advantage vs ICE vehicles and hence undermine the very transition Tesla is trying to accelerate.
As a result my expectation (hope) is that whilst the initial cost of FSD may well rise it will remain well below $50k.