doctorbadwolf
Heretic of The Seventh Circle
I guess I can see that. For me (and I speak for just myself here, as my players don't have a lot of historical context), what you've just described is not so much "Eberron" but more "4th Edition"; and specifically the aspects of 4e I didn't care much for.
Granted, it also describes 3.5 Eberron perfectly well. But it doesn't describe 5e very well at all. And my charge was not to change 5e to fit Eberron, but rather determine how to change Eberron to fit 5e. How do I preserve the 5e sense of rarity and wonderment to magical items in a setting like Eberron? My answer is that the magic economy is based primarily around consumer products and luxury goods and services. Magical weapons, armor, wands of fireball; these would have negative connotations to the Last War (and primarily to the Mourning, as most were produced in Cyre and popular theory blames the Mourning on that production). Codify that hatred and disgust into the Treaty of Thronehold, and now it's against the law to sell that +2 flameburst sword or staff of lightning, and walking down the street bearing such things would mark one as a trouble-maker or instigator. Of course, governments can make use of such outcasts as well. It's also worth mentioning that the Treaty doesn't apply to Stormreach, which would likely still have a pretty thriving magical economy.
This, I think, would be the most radical change if I were creating an Eberron setting for 5th Edition (rather than simply updating it); probably even moreso than whatever I'd end up doing with the Dragonmarks.
That whole thing was part of Eberron from day one, though. In 4e it got ramped up to where high level magic weapons weren't rare, which was a change for the setting, but low level stuff being fairly normal is...fundemental to the setting.
Idk, man. To each their own, I just have a hard time seeing how a thing could keep being Eberron if you force it to conform to 5e's very, very, narrow take on how magic items interact with the world.
Partly because being able to buy a wand of magic missile at a shop makes the world feel like it isn't yet another, "the real good magic is all lost elf stuff that no one can match" setting in a way that even the Lightning Rail doesn't.
For me, the idea of changing Eberron to match 5e's assumptions about magic items just...loses the point of Eberron, somewhere. It'd be like changing it to fit the points of light aesthetic of 4e, or making +5 Sword of Burning Doom a common sight in shops in Sharn.
Sorry for the derail, though. If you want to talk more about 5e and Eberron, I'd be happy to, in another thread.