Well, i'm playing an Orc right now. I am not using the stones to level up faster so i'm leveling up at a much slower rate which is a real good thing. I'm also, focusing on blacksmith, two handed weapons, and heavy armor. I play on master with no fast travel besides public trans.
Anyway, i say this cause playing like this makes the game way more fun as well as making it move along a lot slower which gives me a chance to get a closer look at how things are developing and moving. I make money mainly by hunting and mining for ore, then turning these mats into equipenment to either sale or equip my 4 followers from the Orc strongholds.
Now, as an orc you have access to Orc strongholds. There are 4 strongholds: 2 have Orish Ore, 1 has ebony and the other doesnt have any. Now, i'm a black smith that mainly harvest all my own goods unless i need to buy something. I have depleted all three mines. However, they do respawn. Not sure how long, but i've depleted them twice. Now that my blacksmith has gotten higher i need more Orish ignots to upgrade my armor as well as 4 followers armorer.
Theres a problem however, theres NONE to be had in ALL of skyrim -_-
You see, at these mines at Orcs strongholds you can harvest the Ore and keep it for your own use, or you can sell it to the strongholds Blacksmith.
From all Orish Ore i used to make armor and weapons for 4 follower, i mainly used it with the mats from the mines. When i would interact with a NPC selling Orish ignots, it was around 150 gold per bar and they had like 10 to 15 for sale and i remember thinking if it wasnt for the mines and me being an Orc i couldnt produce this much equipement.
Well, and now it happens, i get a nice par of Orish Gatlents that needs upgrading, so i go to the mines for some more Orish Ore it hasnt respawed yet. So i go to 7 or so different blacksmiths and NOT ONE OF THEM HAS ANY IN STOCK....
IMHO, this has to be tied to the fact i depleted the Orish mines because those ignots were as common as dirt until i cleaned out the mines.
This then got me thinking, the only way to notice these kinds of things is if you playing slow and methodically. And if its true with mines, think of what else this may be true for. I'm thinking selling firewood may mean more arrows that vendours sell, or more food that you harvest means more or less at the vendor, depends if you keep or sell it. Well theres my story yall.