I got Draenor Angler, because I wanted to catch the big fishies in my garrison pond (so I never have to go out and fish elsewhere again, like I just did for the achievement).
After that, I wasn’t too enthused about tracking down Nat Pagle, but I did have 24/25 followers, so I could use another one. I had to chase him to Pandaria where I met this charming fellow.
Then Nat sends me out to every zone to catch fish, because I didn’t JUST do that for Draenor Angler. Whatever, jerk.
Now he’s my follower. He’s not the most useful guy on the block, but he sells a land shark. Guys, LAND SHARK.
If you have no idea what I’m talking about, shut up, you’re a fetus.
Last point is fishing quests. I was doing the fishing daily for my garrison pretty regularly while I was leveling up fishing. However, even when I’m maxed out, I still do it because I get 2-5 primals out of the backpack of goodies – and it costs me no time.
See, I never gutted those fishies that I grabbed for Draenor Angler. They’re sitting in my bank. So when I get a quest for Fat Finless Blimper Eggs, I go to my bank, gut the appropriate fish (usually twice) and then hand in the eggs to doofy when I return to my garrison. Easysauce.
I also got Pinchington the crab, my new favorite pet, out of one of the packs.