Having an amateurish touch on a blog is fine. Having that same appearance in a book is not. We are becoming very used to being able to have everything we want when we want it--websites, books, blogs, vacations, new clothes. I'm still not used to ordering something on the Internet at eleven thirty at night, but I do it.
Writing and publishing a book will probably never be easy in my lifetime. Writers will still have to sit at a desk (or stand or slouch on a sofa) and compose words on a page or a computer or for a voice recorder (notice I didn't say tape recorder) and then review and edit those words. It will take time and physical effort. Shepherding a manuscript through the press will also take time because many of us will want to see our books printed and bound, and many readers will want books to hold in their hands. I'm one of them. I enjoy blogs and learn from them, but I want to hold that book, feel the paper between my fingers, smell the ink and glue and, yes, sometimes even cloth. Even an eBook takes time, for preparing the manuscript, developing a cover, composing the copy that sells the book to the person browsing around looking for something interesting to read.
We can learn to do lots of things. This blog is one example. But I learned to do this by looking at a lot of other blogs, trying out simple ideas, and revising and fixing. It is a very modest effort. And I'm fine with that. But I would not want my books to be on quite this level. For the books I write I want to rely on other professionals to do the job they know how to do, the job I don't know how to do.