That's the recommended price. But the Steve Jobs book is older, and when it was new, it was like $34,99.
> The book was based on over forty interviews with Jobs over a two-year period right up until shortly before his death. Isaacson also drew on conversations with friends, family members, and business rivals of the entrepreneur whose vision revolutionized computing, music, phones, animated films, and publishing
It also was published shortly after his death (AFAICT Musk is still alive)