wingsandsword
Legend
Between things like this and the myriad answers here of "You can't run a teleportation business, House Orien would kill you", or "prominent nobles would put you out of business", it really looks like part of the point of Eberron is you can't really change the setting.This is probably an exercise in long-term futility, because I remember one such thing came up on the WotC Eberron boards. Someone asked, "Why are Valinar Horses so expensive?"
The answer: "Because the elves don't sell them."
Reply: "So if I horse-thief some of them, and start breeding them, I can make a mint."
Answer: "The horses ridden in battle are fixed. Only certain breeding stock is kept in secret places."
Reply: "So, I have a druid and he casts Regeneration and Heal. Horse is now healthy and can reproduce. I use Dominate Animal to make them breed. Can this work?"
Answer (from Keith Baker himself in a Dragonshard): "The horses have some kind of spiritual connection with the elven heroes of the past. Attempts have been made to breed the horses, but only the elves seem to have the understanding or the knack to ensure success."
And that's just the example I remember. All settings have things that are story-wise awesome, but game-mechanical *whu?* Too many to ever really fix, especially with more rituals and powers being released all the time.
I want to start a business. . .but the existing cartels will assassinate you (or the DM will just say adventurers who open businesses aren't adventurers anymore and end the campaign).
I want to breed rare horses. . .but special magic makes it impossible.
I want to do anything other than dungeon crawls or other conventional adventuring. . ."a wizard did it" to make sure you can't do that.
I was always wary of Eberron for a number of reasons. I've been having fun with DDO, and for an MMORPG, Eberron works, but I'm agreeing with the OP that in a tabletop game I would have trouble swallowing all the sheer fiat required for the setting to work with the assumption that PC's can't really change the setting because the entire world is elaborately set up to stay in an indefinite status quo the PC's can't break.