Boots of Striding

[Ambrus]

I'm trying to determine the cost of a Boots of Striding, which offers a +10 enhancement bonus to base speed, while discarding the Springing part, which grants a +5 competence bonus to Acrobatic (jump) checks. The listed cost of such boots are 5,500 gp.

Normally, when adding a second ability to a magic item, you multiply the lower item's cost by 1.5. A +5 competence bonus to a skill normally costs 2,500 gp, so it seems likely that it's the speed bonus that carries the lower cost. So, if the Striding ability cost 2,000 gp, multiplied by 1.5 equals 3,000; added to the Springing ability's 2,500 gp results in the full item's cost of 5,500 gp. Does 2,000 gp for a +10 base speed increase seem correct?

How much might the cost of additional speed increases for an item be calculated?

[Noir le Lotus]

2500 GP is for a +5 for all the uses of a skill.

BoS&P gives +5 in Acrobatics only for jumping, so I think the cost of such bonus is much less than 2500 GP.

[Fuzzy-Wuzzy]

Your reasoning looks sound to me. Also, this effect is equivalent to a perpetual longstrider, which according to the guidelines should cost around (SL 1) x (CL 1) x (2000) = 2000, so you're good.

For more speed I'd say go with a perpetual greater longstrider, getting a +20' enhancement to base speed and +10' to any other movement modes. That should cost around (SL 3) x (CL 5) x (2000) = 30,000. I don't think I'd allow increases past that.

[Pizza Lord]

Since the boots increase your base land speed, you're also basically getting a +4 to Acrobatics jump checks for every 10 feet you increase anyway. This is unless you consider an enhancement bonus to not be an increase to your base speed, although the boots seem to imply they do increase it.

[Cevah]

Boots of Striding and Springing

The boots have a continuous 1st level spell at 3rd level effect. That price is 1(CL)*3(SL)*2,000(Cont)*1(H/L) = 6,000 gp.

They also have Comp +5 Acrobatics (limited). That price is 5(bonus)^2*100*Discount*1.5(2nd eff) = 3,750*Discount. The discount can be up to 30% for a very restrictive limit. That is -1,115 gp from 3,750 gp.

This translates to 8,635-9,750 gp if priced by the rules.

If you instead use CL1 for the spell, you get:
Spell: 2000 gp + 1000 gp (2nd eff)
Acrobatics: 2500 gp
Total: 5500 gp.

There are pure +X Skill items that cost X*X*100 and that do not give the full skill, so getting a discount for only part of a skill does not seem likely.

I think someone calculated minimal cost boots (i.e. CL1), and someone later upped the CL, forgetting the effect on price.

/cevah