One of the primary challenges you may be faced with in trying to compile your boh entries into a book format lies in organizing your content. Will you list the content in the order in which it was written, group it by topic, arrange it according to a theme, or just randomize it? If you can figure out that answer, then you'll have a good start on deciding whether you even have enough content to justify a book.
Another challenge will be in converting the blogs posts into relevant content. For example, if you have a dozen posts that generally relate to the same topic, do you really want to include all twelve, or would it be better to merge them together into a single statement or phrase or chapter? It might be better to take the most salient points from each of the separate posts to provide a more complete or entertaining topic with more supporting material.
Frankly, if you are just rehashing the same original posts verbatim, I'm not sure any of your followers will see a book as anything worth pursuing. However, if you merge the posts in an organized manner and perhaps rewrite portions to make the content fresher, then you will most likely have an easier time convincing people that the book is worth their time.