Well, if you're in need of the cash, any excess buff food you have could fetch a pretty penny. I would think Golden Fishsticks are always in demand. Around here, they sell for 20+ a stack. All in all, most buff food is in demand, Crawdads especially for the many tanks around; however, if you find that you gain more a of a profit by doing the other dailies, it's just a matter of preference at that point. I do much like Thran in that I'll pick up the cooking daily depending on where it lands with my "Badge Dailies," and any food that I can't personally use I either save up or throw in the guild bank to help my fellow guildies. :D