I've found a fun cap dump for endgame.

Don't you just hate when you see a camp that has a bunch of mods for sale, only to find they're all bullshit mods for pipe guns and whatnot? Feeling like you've been bamboozled into wasting your time going there? Buy all those mods and dump them into the river! It'll also help keep your fellow wastelanders from being tricked by such dastardly behavior!