The person who writes advertising for AuthorHouse doesn't understand the English language.
The first two sentences in #1 above say, "You set your self-publishing goals. As your book publisher..."
If AuthorHouse is the publisher, there is no self-publishing going on!
The second segment says, "Thinking of self publishing your book" and "Get published for just $399.
If someone is self-publishing, she or he does not get published -- she or he publishes!
In the third segment we are informed that AuthorHouse is "the leading self-publishing company in the world."
That's an interesting claim, and an impossible, illogical claim. AuthorHouse is not a self-publishing company, leading or otherwise. Except for a small book business set up by a self-publishing author, there is no such thing as a self-publishing company. No company can self-publish an author. Only the author can self-publish the author.