Lots of reasons: 1) I'm always in learning mode, 2) it's helpful to see how the illustrations represent more or less of the story, 3) when the text rhymes, does it support or lend impact to the story? or not? 4) sometimes ideas springboard from the PB ideas, 5) what is the market highlighting today or drowning in (new idea or another vampire book?), and most importantly, 6) I love to read picture books!
That said, I ran across a South Carolina list of 2013-2104 Picture Book Award Nominees. Of all the books listed, I've only read Caldecott Honor Book One Cool Friend by Toni Buzzeo. However, there is a broad selection of great books on the list and I plan to read as many as I can. Interested? Check them out and let's compare notes. - Q