Oh goody, another pointless argument. Ah, what the hell I'll play.
Forget the economy. Forget the friendlies and the baddies and everything else. I know it's hard but do try. Okay now ask yourself this. What if I wanted to roll a heavy armour duel wielding assassin with Alchemy as my only craft. So eventually I do a certain quest that provides a certain piece of Ebony armour. Now I would like to complete the effect by getting matching Ebony pants, socks and boots. What? Shops don't sell Ebony armour because nobody in this world should rightfully be able to afford it? Mobs don't drop them because no right thinking criminal would fight with the best armour he's got? Are you insane? You want to force me to take up Smithing because "you gotta stick with the lore"?
But luckily for me the shops do sell them so I'm able to get my Ebony pants, socks and boots. Sure would be nice if I could get some boots with a muffle enchant on. Huh? Shops don't sell enchanted armour because not one blacksmith in Skyrim have leveled their enchanting skill to 100? Not one blacksmith uses an college enchanter's services to try and make some extra gold? I'm forced to take up enchanting too? What sort of messed up game is this?
People like having a choice and we all understand that to get a choice we have to sometimes overlook certain things. This is where imagination should come in. Since you're so set on immersion I'm sure you must have some imagination.
All of these arguments could be easily solved...
1. Make equipment like Ebony only available to one or two exclusive merchants.
2. Let people pay for enchantments again
Both of which were done in the past, and it immediately solved all your problems. You just need to work harder to get special things which makes sense.
And now that people have had more opportunity to work with the damn stuff, since the legal restrictions on dealing with Dwemer are now gone, they've figured out how to work with it more. It's been over 200 years of tinkering and studying. I'd be more concerned if there wasn't progress in figuring out what made them work.
The Dwemer have been gone for more then 4000 years, and besides a very small few nobody has figured out how they build things and how their technology works. There is no mention of anybody figuring it out during Skyrim and such things would be great news especially amongst certain Dwemer scholars... So this simply isn't true.
Why not? There's tons of the stuff over in the Illiac bay and in Cyrodiil (I hear common bandits were loaded with the stuff down south). As soon as a market opens up for it, the credit lines start moving stuff around to where it's needed. Yes, you're the center of the economy, because you're THAT BIG.
If Oblivion was true then a bandit that comes to ask you for a 100 septims carries full Daedric gear worth thousands! He has enough to buy a large house fully decorated on him, and he robs you for a 100 septims? Oh that's not just one, there are dozens of them out there. Don't trust Oblivion on this issue, that is clearly gameplay...
Even though there are at least three major caravans that specialize in movign high-value items from out of the province into it?
Which is simply not true. The Khajiit say they are in Skyrim because it's a great time to make money even though there is a war, they were there before you doing the exact same thing. So if the economy revolves around you they were being idiots. More likely they were trying to make money by selling mass amounts of products that all people can buy and that nobody else dares to transport right now. For them to travel around like they do trying to sell Daedric or Ebony armor and weapons would make no sense...
The fact is that this entire world changes around you. You can say it is because you as the player have the shopping power of a small nation, and that might be true. But funny thing is, with that kind of money you order your stuff. You let someone know you want something expensive, they acquire it for you and then you pay them... Not a single merchant in Skyrim could logically afford filled Grand Soul gems, or Ebony armor, nor could they afford most Ebony weapons and there wouldn't be a single bank in existence that would give them the money to buy some of it just in the hopes of selling it to a single person.
If you want to call it realism then the merchants would come up to you and offer you stuff for a certain price which they will then acquire. That doesn't happen, probably because it would svck. But this isn't realistic at all.