Rather than glass or furniture, I think something that stands out as odd is the absence of any kind of wagon or vehicle.
One of the most basic inventions that mankind made was the wheel, yet in Fallout every trader just has his wares stuffed onto the back of a Brahmin instead of getting some kind of basic vehicle. I mean there should be more than enough broken cars lying around that even if you can't fix them properly, you could use them as a makeshift wagon to be pulled by Brahmin. They could even sit down on these too, instead of walking from place to place through the burning sun.
That, of course, would make restoring roads or living near them a lot more feasible. Why would a trader visit a town where he has to cross miles of impracticable terrain to get to? Or in other words, why would people settle in a place where they have to travel accross that kind of terrain to get anywhere?
If you look at how population developed in the first place, people would gather and start settlements around natural sources of water or food. 200 years after the war there should be at least some places where that's possible, so that's where people would go to. No point in hanging around some desert that'd be harsh to live in even before the war.
If one of the major concerns was getting food, maybe it'd be a good idea to go near the coast where fishing might be an option. Also, sea water could be refined and made usable for drinking or maybe even watering crops.
So I guess realisticly, you'd find most people around some kind of lake or spring, where they have access to non-radiated ground water, and along the coastlines.
Another thing to consider might be railroads. In NV I found myself crossing a railroad and instinctively looking left and right to see if there was a train approaching. Of course there wasn't, but really, why not? Before there were cars, there were trains, because they're easier to produce and maintain I guess. They probably take less fuel to get from point A to B as well, because the tracks are made to fit their wheels specifically, so there should be less friction than with a car and its tires.
Railroad tracks shouldn't be affected too much by the war, so why has no one ever gotten the idea of integrating tracks into trade routes?
Once all the basic needs are covered, people are going to look to other things like fixing windows and furniture, but somehow people in the Fallout universe seemingly managed to just barely scrape by for 200 years.
Buuut then again, I guess the scenario is just more interesting the way it is, instead of being too realistic and everything falling back into place too soon.