This poll is particularly illuminating given the selection bias of TMC.
Given that most consumers, of any vehicle brand, don't spend any time at all on fan forums...this poll can in no way reflect the general concensus of all Tesla consumers. I assume that most TMC members are (a) fans of Tesla, (b) early adopters of technology, (c) of relatively high income (e.g., households over 100K per year), and (d) excited about the potential of FSD.
I have FSD which I got during the $2K firesale (so this is a moot point) but I would only be willing to pay ~$25 a month for the current system....and maybe $50 a month if it got to L4. However, I am also an early adopter of most new technology, and am continually looking for the next thing (e.g., I update my iPhone basically every year.)
Most drivers don't even reliably use cruise control. So I wonder what the typical Tesla customer would be willing to pay...if anything at all?