Teric neDhalir wrote:Yeah, I realised after posting that I'd got the 25gp multiplier from scrolls...
My point is really that if you follow that equation then your basic Cure Light Wounds et al are going to have different costs depending on who casts them ... which may be correct "by the book" but isn't how things are normally done AFAIK.
This is, indeed, how it's done in practice.
But you don't get a high priest to come cast a CLW for you, typically. You find that level 1 or 2 acolyte to slap that one on and be out only 10 or 20 gold, but if you track down that clr 15 running the temple, you'd best be ready to pay for the honor of having someone that holy cast an orison on yer sorry behind.
The idea of "maximum potency" doesn't really apply here; the extra cost for a higher level caster is because a higher level caster's time is more valuable, and they have more/ more important things they should be/would rather be doing. Fine example, applicable to the real world: drive down to a home depot and find that group of questionably-legal laborers on the side of the building; ask them how much it'd cost to mow your lawn. Ask the same question of a professional landscaper (just the mowing, not any actual artistic changes to the area), and ask the same question of a doctor. I bet you get three very different numbers for a very mundane job, one that's probably only worth the price quoted by that first group, no less.