Iry
Hero
I disagree. The very nature of "Wide, not High" means a greater number of low level people capable of magic than the norm. Paladins can provide the service at Level 1, if they are so inclined. And while Level 3 is considerably more rare... you can add everyone from House Jorasco on top of the usual casters with such spells.Sure, it varies. But it’s objectively canon that they are less common in Eberron than FR, and that they aren’t common in any published setting with the possible exception of Ravnica.
Availability is not the problem. Persuading/Paying is.