KKDragonLord.
What's the foundatiion of your DND worlds economy?
Most complaints I've seen about the economy end up groundless, because they have no set point for value comparison.
What would a PoL's economy be based on?
Food?
Metal?
Labour? (If food is plentiful.)
The price of plate all depends on this. If you've a society that's has magic to improve crop growth, has magically means to refine ore, etc, then what's the worth of an item calculated on? (In that case, it would likely be labour. Something similiar to our markets now. In which case, plate would be cheaper.)
Also, if you're going to work on consistency, then I hope you're running in a world with very low magic. Any sort of magic tends to through out economies.
For me, I've made it easy.
Residium is the basic core of economic value. Household rituals, Crafting Rituals, Crop Rituals.. All of these things are hedge magic, available to most people, if they want to learn. So.. the core thing that defines wealth is not just magical ability, which is simply a skill that can be learnt, but resources of magic.
Also, the price point for gold has always been idiotic, in DND. The whole economy has always been broken. I've fixed it in every version, and I'll fix it in this. Using the same method, and looking at what can most easily affect the basic conditions of a society.
Labour will be highly valued in a society that has lost the skills for Magic. Items of art will hold less economic value, and more cultural and personal value. Societies, say like the Eladrin, whom have magic for everything, will value art at an asthetic and economic level, and have a much more similiar outlook to us, now.