I also read newspapers and some other things back to front.
Daylilies had a yearly publication called Eureka with many pictures of currently sold varieties and their price through different sellers. For three years, 2002-2004, the publisher tried one for iris. It must not have sold well as he didn't continue. I was thinking of buying one when my financial situation was better. I think the original ones were in the $35 range but he sold old volumes considerably cheaper, about $18. At that time, three-four years ago, they were still available. Their site is www.GardenEureka.com.
Well, I just checked and the site is no longer active. Found some comments here on the Daylily forums and the publications apparently ended with 2012. Found a combination 2004 Hosta and Iris, so 2 volumes bound together, through Google, being sold for $20 plus $5 postage. Personally I would have snapped it up in a heartbeat if I could afford to, as also love hostas. But of course we are mostly interested in the more recent ones. You might set up a search on E-Bay, if it interests you, but since out of print, I doubt you could find it any cheaper.