Upper_Krust
Legend
Hi poilbrun matey! 
I trust you and Izzy are great!?
Well that wasn't entirely clear then, apologies for my mistake.
Actually the correct answer is 'B', 1,620,000 GP.
Any individual market modifier of +6 or better means its epic, so the answer cannot be 'A'.
You never split non-epic and epic market bonuses within the same weapon, so 'C' is incorrect.
One possible solution to this mess might be to triple the bonus rather than squaring it. This would do away with the need for a x10 modifier hike at epic.
Use x 200 for weapons and x 100 for armour/shields.
1 x 1 x 1 x 200 = 200 GP for +1 weapon...little more than masterwork anyway.
3 x 3 x 3 x 200 = 5,400 GP for +3
5 x 5 x 5 x 200 = 25,000 GP for +5
7 x 7 x 7 x 200 = 68,600 GP for +7
10 x 10 x 10 x 200 = 200,000 for +10
20 x 20 x 20 x 200 = 1,600,000 for +20
30 x 30 x 30 x 200 = 5,400,000 for +30

I trust you and Izzy are great!?

poilbrun said:Just thought I'd point out that Kerrick is speaking about a +5 sword with the keen and holy abilities (+3 market modifier), for a total modifier of +8, becoming a +6 sword with the keen and holy abilities (+3 modifier), for a total modifier of +9.
Well that wasn't entirely clear then, apologies for my mistake.

poilbrun said:I think it is not that easy to know the price of a weapon with an epic enhancement bonus but with a total modifier lower than +11. For example, how much does the above sword cost (+6 enhancement, +1 keen, +2 holy):
- 162,000 GP? That's the price of a non-epic +9 weapon
- 1,620,000 GP? That's the price of an epic +9 weapon
- 738,000 GP? That's the price of an epic +6 weapon (720,000 GP) plus the price of a +3 non-epic weapon (18,000 GP)
I'd go with the third one, epic price for the epic part of the sword (in this case the enhancement bonus), non-epic price for the non-epic part (in this case the added abilities). But then it begs the following question: can you have a +1 longsword with an ability valued at +6 or even much higher (depending on the highest-valued ability you will have in Grimoire).
Actually the correct answer is 'B', 1,620,000 GP.
Any individual market modifier of +6 or better means its epic, so the answer cannot be 'A'.
You never split non-epic and epic market bonuses within the same weapon, so 'C' is incorrect.
One possible solution to this mess might be to triple the bonus rather than squaring it. This would do away with the need for a x10 modifier hike at epic.
Use x 200 for weapons and x 100 for armour/shields.
1 x 1 x 1 x 200 = 200 GP for +1 weapon...little more than masterwork anyway.
3 x 3 x 3 x 200 = 5,400 GP for +3
5 x 5 x 5 x 200 = 25,000 GP for +5
7 x 7 x 7 x 200 = 68,600 GP for +7
10 x 10 x 10 x 200 = 200,000 for +10
20 x 20 x 20 x 200 = 1,600,000 for +20
30 x 30 x 30 x 200 = 5,400,000 for +30