Wee Free Men

I am whiling away my time on the hold list for Terry Pratchett's Nation (I've had it on hold since it was reviewed in the Washington Post Book World last fall; I'm now at number 31 on the list) by reading The Illustrated Wee Free Men: A Story of Discworld, illustrated by Stephen Player (HarperCollins, 2008).  I first read The Wee Free Men in a mass market paperback edition, and it's somewhat disconcerting to be rereading it in an oversized one, with glossy pages and full-color illustrations throughout.  But Tiffany is how I had imagined her, and I love the occasional gatefolds that show (for example) Tiffany stepping through the arch and into the snow.  But I would still rather be reading Nation.  Should I just buy it already?