Figuring out cost of Rod of Quicken

[Prawn]

From the SRD:

Price 35,000 gp (lesser), 75,500 gp (normal), 170,000 gp (greater);

How is this price arrived at?

normal does up to 6th level spells, but quicken is plus four levels, so am I now pricing a 10th level spell power? Modeling after pearl of power doesn't work, and if I price it as a command word item with charges a day, the price is lower than the price for the rod.

I am trying to figure out adding quicken to an item. I want it to function once or twice a day instead of three times, and I can't figure out the math.
Thanks
Prawn

[CrackedOzy]

If it normally functions 3/day and you want to make it 1/day or 2/day, can't you just divide the current cost by 3 and go from there?

1/day - 11,500 / 25,000 / 56,500
2/day - 23,000 / 50,000 / 113,000

I rounded the numbers off a little here and there, but still.

[Kahn Zordlon]

I tried pricing metamagic rods, but there was no linear or non-linear formula that I found. If anyone finds one please post as I am curious. Something with spell level, uses would be awesome.

[Cheapy]

You take a look at the items around that price point, and figure out if it's a nobrainer or not.

An item that grants quicken and that does not require it to be hold would probably be 33-50% more expensive, leaning towards 50%. It's a big handicap.

[Weables]

I agree that adding it to armor would up the cost, simply by freeing your hands. 33% seems reasonable to me, but I wouldn't object to 50% if my DM ruled that way.

Charge per day items used to be figured at 5ths. Unlimited was equal to 5 charges per day, and you divided by the number you wanted, so 3 charges would be 3/5 of the total cost.

From there, we can reverse engineer it. We multiply by 5/3 instead getting 58333 (or 58500 rounded). From there, you could mutliply by .2 to get 1 charges value of 11700. Multiply this by 1-4 to get your total cost, then multiple by 1.33 or 1.5 to get total cost, depending on what your DM feels a reasonable penalty is for it being basically slotless.

(Ozy's way works fine for the specific price you were looking for, but this will give you a way to reverse engineer any similar item as well)

[ZomB]

I worked this out once before in 3.5 and the lesser quicken rod is overpriced based off the general progression whilst all other rods work out OK. Best I can work out at present (away from home and previous calculation) is:

Base price is 900 * 3 (charges per day) *

1 Lesser
2 Normal
3 Greater

* Spell level raise per type

+1 = 1/2/3
+2 = 3/6/9
+3 = 5/10/15
+4 = 7/14/21

Therefore:

Lesser Extend (+1) = 900*3*1*1 = 2700 (book 3000)
Lesser Empower (+2) = 900*3*1*3 = 8100 (9000)
Lesser Maximise (+3) = 900*3*1*5= 13500 (14000)
Lesser Quicken (+4) = 900*3*1*7 = 18900 (35000)

Extend (+1) = 900*3*2*2 = 10800 (11000)
Empower (+2) = 900*3*2*6 = 32400 (32500)
Maximise (+3) = 900*3*2*10= 54000 (54000)
Quicken (+4) = 900*3*2*14 = 75600 (75500)

G Extend (+1) = 900*3*3*3 = 24300 (24500)
G Empower (+2) = 900*3*3*9 = 72900 (73000)
G Maximise (+3) = 900*3*3*15= 121500 (121500)
G Quicken (+4) = 900*3*3*21 = 170100 (170000)

I don't recall if it is exactly the same as last time I did it apart from the 900 base, but it works.

[Prawn]

I guess I don't understand what this means:

"* Spell level raise per type

+1 = 1/2/3
+2 = 3/6/9
+3 = 5/10/15
+4 = 7/14/21"

Is the plus how much it costs to apply the metamagic feat to a spell? What are the numbers in the slashes?

I am still trying to get to a price for 1x a day or 2x a day for a normal quicken (levels six or lower). Normal would be 75500 for three times a day.

Accoring to to your calulation
"Quicken (+4) = 900*3*2*14 = 75600 (75500)"

with the 3 being charges a day.

So 900*1*2*14= 25200 for 1x a day

900*2*2*14=50400 for 2x a day

This is almost the same as saying 25K for 1 a day, 50 for 2 a day and 75K for 3 a day.

Does that seem right?

[ZomB]

Prawn wrote:

I guess I don't understand what this means:

"* Spell level raise per type

+1 = 1/2/3
+2 = 3/6/9
+3 = 5/10/15
+4 = 7/14/21"

Is the plus how much it costs to apply the metamagic feat to a spell? What are the numbers in the slashes?

Lesser/normal/greater multipliers

Quote:

I am still trying to get to a price for 1x a day or 2x a day for a normal quicken (levels six or lower). Normal would be 75500 for three times a day.

Accoring to to your calulation
"Quicken (+4) = 900*3*2*14 = 75600 (75500)"

with the 3 being charges a day.

So 900*1*2*14= 25200 for 1x a day

900*2*2*14=50400 for 2x a day

This is almost the same as saying 25K for 1 a day, 50 for 2 a day and 75K for 3 a day.

Does that seem right?

Yes

[Prawn]

Thanks. It is what I wanted to do intuitively, but it is nice that it is almost the same as the formula.
Prawn.

[Shar Tahl]

You must also remember that the items in the core rulebook were not all created with a formula. You will not be able to replicate every item and get the same result.