If you get cpm in the heading - why bother with separate threads for "good deals"?? Ditch the current set up and simply have one forum for low fares: with cpm and class of travel in the header, readers can click on to any thread that attracts them - for whatever reason (MR or cheap trip).
The current set-up isn't at all helpful for quick scanning, and what is proosed would be even more cumbersome.