Oh shit! I didn't even think about there being some kind of limited economy in this game! I just assumed that you get the same price for selling things anywhere. That's awesome! So if you want to make more money, get stuff only available on one side of the map and sell it on the other? Brilliant - wish I would have thought of that sooner and feel dumb that I didn't.
I have seen "sales" sometimes on items but didn't know if they were temporary or something at that particular store only but I had no idea there was maybe an actual economy of sorts in RDR2.
By the way, for those of you wanting to know a bit more about hunting, make sure you study an animal the first time you encounter it. It will tell you what kind of animal it is, what quality of pelt it has, and if you look it up in your compendium it will tell you what kind of weapon works best to get a clean kill on it. Not getting a clean kill or using weapons too powerful for that particular animal can lower the quality of the pelt I think. To get the animal to show up in your compendium you have to kill the animal at least once. However, generally, small animals require the varmint rifle, medium sized animals are best with a repeater, and large game (or animals with thick hides like a boar) are best killed with a rifle. I think that bows tend to work with all animals but they won't necessarily "one shot" an animal if you don't get a good hit on it. Note that I am by no means an expert, have read no online guides and could be wrong with some of this information - this is just what I've figured out on my own.
This damn game is the finest piece of entertainment I've ever had the pleasure to play and all I want to do is to keep playing even after dumping 60+ hours in and I'm still early in Chapter 3. Don't want it to end. This is my dream game.