Some signs of ostentation whose value has seriously decreased: in the future, who needs gold when you're stockpiling bullets. Who needs a diamond necklace when you're a few non-irradiated meals between life and death. Silk dress? Um, some dudes are shooting at you for your mac n' cheese.
Weapons with recoverable ammunition. Slings, bows & arrows, crossbows, some handy jagged rocks you pick up off the ground but aren't worth enough to carry with you.
Securitron TV. It seems that House has the ability to wirelessly transfer data after all, some of it visual. Would it really be that hard to do a visual broadcast? Would that really destroy the Fallout universe if such a thing were possible?
A girlfriend/boyfriend. In particular, maybe one who didn't have the same job as the Courier (insane, possibly suicidal savior of mankind or even traveling companion of same) but had his/her own job and stayed in a place you visited often enough that you could still date them.
A village smithy. We've got the gun runners, we've got lots of scrap metal and we clearly have the available technology to heat metal and hit it with hammers on an anvil. Why can't people forge stuff on their own, like new swords that actually look like swords?
Gunpowder bootleggers. I'm no chemist, but it's not at all clear to me that 200 year old bullets will fire properly and I have no idea who is making new gunpowder in the future.
A currently functioning vault that you figure out a way to break into so you can steal a piece of technology for some crazy save-the-wasteland scheme. Instead of an evil Enclave experiment, this time you're actually fighting descendants of relatively well-cared-for nuclear holocaust survivors.