Built to destroy and Good Natured.
Built to destroy has relatively simple logic behind it. I'm paying caps/equipment for an additional three points of luck toward my critical chance. Ingame, i'm sure people will gladly spend thousands of caps to upgrade their luck just once and yet still think built to destroy is a bad deal. For the purposes of combat it's almost as good as the finesse perk, three times as good as intense training and you get to select it as a trait.
Think of it this way. If an NPC in Fallout 3 had offered you a perk to increase your critical chance by three in exchange for ten hunting rifles, a chinese assault rifle and a few misc items i imagine most people would have taken the offer.
I probably wouldn't, as I usually use sniper rifles and long range weaponry to get a few hits before they're near enough to chew my ears off. Plus, you won't be able to carry enough extra weapons / repair kits if you play hardcoe, or probably in another game mode to constantly fix your guns. HC already makes weapons degrade quickly anyway...
I took Wild Wasteland and shortly after leaving Doc's I got some weird music and the perk's icon in the upper right and found a hat with a skeleton inside of a fridge. O.o
Everyone's seen that, apparently. Indie reference FTW! Though the new one got pretty bad as it went through...