Maxxed out Living off the Land combined with Super Corn is good money.
Each ear of Super Corn is base value of $40 each so if you make a field of super corn you are literally growing money.
Max Better Barter ups them to $50 each. You factor in all of the Trading perks and it goes up to $68 each.
That's probably the best use for it in the early to mid game.
It is still a more efficient dukes value to craft your own Grandpa's Learnin' Elixir & Awesome Sauce (this being after getting Wasteland Treasures Vol. 1 so all trees drop honey) than buying it from vending machines so that's a bonus.
I agree on the Glue... bones are way more efficient because you can get them literally from anywhere on the map.
But in multiplayer you need all you can get for glue to duct tape for repair kits so it still has value in that regard for glue.