Savory Deviate Delight is worth more than 50s per fish most of the time on my server (Bloodhoof). The standard price for them is about 5 gold for 5 fish. I made a lot of money selling at that price. Occasionally a bit of competition would spring up and the price would drop, but I just banked the fish until it went back to the price I liked.
The toughest part (aside from fighting sleep with the fishing) is to acquire the recipe for Savory Deviate Delight. It's between 40 and 60 gold for it on Bloodhoof, but you can probably get one if you just massively murder all the mobs in the Barrens. As a 57 Hunter, I can multishot and take out three at a time, so I did, and after about 300 kills, I netted the recipe. Its not only worth it for the money, but it randomly morphs you into the form of a Pirate or a Ninja. There are other effects, but I believe they've really narrowed the chances for them to occur. I get Pirate or Ninja about 75% of the time.
I believe they've nerfed the rate these fish are caught at, because the rate is about 20 Deviate per hour of fishing. Used to be about 40 or more. I also have consistently caught more Deviate Delight from INSIDE the instance than in the lakes outside. Might be luck, but it's better, and you don't have to deal with the Horde hopping around in front of your bobber in hopes of having you instigate PVP.
Edited, Wed Aug 24 15:41:29 2005 by Moradis