A lot depends on the situation.
For example, how many cousins vs siblings do you have?
Both of my parents came from a farm family with eight children. I have 25-30 first cousins on each side.
If I am making a book for cousins, I want separate books. My maternal cousins have no interest in my Dad's side. My paternal cousins have no interest in my Mom's side.
Also, in my particular case, Mom's side is dominated by New England Genealogy, which makes me probably related to half of all natural born Americans and a descendant of approximately 150 known immigrant families from 10 to 15 generations ago. Whereas my paternal side is dominated by German and Scots-Irish immigrants after the Civil War. I have tens of thousands of people in my file from my New England side and less than a thousand from my paternal side. My paternal side would be "swallowed up" being included in a book with my maternal side.
Everyone has their own situation.
The neat thing about FTM is that you can create different books for different target audiences.
The bad thing is in a large book, FTM does not provide for page by page footnotes, but obscure and hard-to-find endnotes. This is one big reason to opt for a tree on-line. Either ancestry or WorldConnect will show footnotes right on the page you are looking at, without referring to this obnoxious notion of End Notes - which are neither useful or meet professional standards.
Of course, one can do both - an on-line presentation and a book.
For example, how many cousins vs siblings do you have?
Both of my parents came from a farm family with eight children. I have 25-30 first cousins on each side.
If I am making a book for cousins, I want separate books. My maternal cousins have no interest in my Dad's side. My paternal cousins have no interest in my Mom's side.
Also, in my particular case, Mom's side is dominated by New England Genealogy, which makes me probably related to half of all natural born Americans and a descendant of approximately 150 known immigrant families from 10 to 15 generations ago. Whereas my paternal side is dominated by German and Scots-Irish immigrants after the Civil War. I have tens of thousands of people in my file from my New England side and less than a thousand from my paternal side. My paternal side would be "swallowed up" being included in a book with my maternal side.
Everyone has their own situation.
The neat thing about FTM is that you can create different books for different target audiences.
The bad thing is in a large book, FTM does not provide for page by page footnotes, but obscure and hard-to-find endnotes. This is one big reason to opt for a tree on-line. Either ancestry or WorldConnect will show footnotes right on the page you are looking at, without referring to this obnoxious notion of End Notes - which are neither useful or meet professional standards.
Of course, one can do both - an on-line presentation and a book.