Survey on paper textbook

I might produce a paper version of "Lectures on probability and statistics", after completing the free digital version (this website). However, I would like to know whether the number of potentially interested people is sufficiently high to justify the effort.

If you are potentially interested in owning a paper version, would you take 30 seconds to answer the following two questions?

Answer the two questions now.

Question 1

Which of the following best describes the reason why you would like to own a paper version of this textbook?

I do not like reading textbooks on a screen.

I do not like the layout and presentation of this website and I think a paper version might look better.

The mathematical formulae displayed on this website are hard to read. In a paper version they would be easier to read.

I would like to own a paper textbook, so that I can annotate it and bring it anywhere.

Question 2

If the textbook were around 800 pages and its price were between 50 and 60 dollars, would you think that:

the price is too expensive.

the price is acceptable.