Surely you've seen River Monsters. Who hasn't? He goes all over the world, 6 continents to catch crazy fish. Well, Thailand has got all of those fish he's caught - spread out in one lake (well actually multiple lakes). On top of that, it's incredibly cheap to fish there, and there is relatively open water, meaning little to no snags, meaning lighter tackle meaning a harder fight. It truly is an amazing place to fish.
So I started thinking - why aren't there places like this in the states? There are more people than you'd think that keep alligator gar (a native fish in the first place), arapaima, and especially red tail catfish, tiger shovelnose catfish, and other large cats among others. Getting the fish would be kind of expensive, but you could buy bulk farm raised fish and probably save some money with it.
So here's a question for you - what species would you like to be able to fish for in your home state? Disregarding things like the lake freezing over and such.