Not only does this break up the page, it can add actual value to the page - for example, on my clown-ministry.com site, something I do for everything that I review is a picture of the book, DVD, album, etc. Not only does it break up the monotony of the typed page, it helps people to see what the review is about -- and the old saying that "a picture is worth a thousand words" is doubly true on the web.
And there's some additional benefits to having images on your web site for SEO -- but we'll talk more about that next time.