Toad,
I got a book a couple of months ago through a Mousesavers link for $15. I was getting it for a $20 coupon for National. Although, right after I got it I was able to use a free greens fee coupon for a golf course I was already scheduled to play.....saved me $30 right then and there!
I see that ebay has a few 2004 books up for sale. May be your best bet. Just type entertainment book in the search box. You can try the entertainment book's website and type in your zip code to see if they have any 2004's left. Although I think they are just pushing the 2005 book.
ckret01 - you do have to have the coupon with you.
PP