Here's a list of what VoP provides, and what its equivalents would essentially be:
AC bonus: At 18th level, this maxes out at +10 AC. This is the equivalent of +1 Heavy Plate (Races of Stone additional armor), so 3,000 gp, plus another +1 bonus (I think +1) to work against Brilliant Energy, so 6,000gp.
Extra feats: Some would call the extra feats priceless, but we all know the effects of many, many feats can be had for coin. For instance, getting the benefits of the Mobility feat only requires a +1 enhancement on light armor. The other end of this spectrum is metamagic rods which go up to 170,000 GP in the DMG, and likely higher to account for Persist being a +6 modifier. If the character has VoP at first level, he'll gain 11 more Exalted feats over his non-epic career. This could mean the feats are worth as little as 33,000 (11x3,000) or go into the millions. We'll get back to this another time, maybe in my own guide.
Permanent Endure Elements: Putting this on a ring would cost 1,000 gp per the custom item creation rules in the DMG, page 285.
Exalted Strike: The cost of a +5 weapon is 50,000 gp. Toss in the Good alignment for another +1, making it +6 for 72,000 gp. This applies to all weapons wielded by the person, so going TWF might raise this to 144,000.
Sustenance: Sustaining Spoon costs 5,400 gp.
Deflection: +3 Ring of Protection costs 18,000 gp.
Resistance: +3 Cloak of Resistance costs 9,000 gp.
Ability Score Enhancement: The total costs for +8, +6, +4, +2 comes to 120,000 gp.
Natural Armor: +2 Amulet of Natural Armor costs 8,000 gp.
Mind Shielding: This one I'm mostly clueless on actually. I'm not familiar with any items or spells that block detect thoughts, discern lies, or "detect alignment."
Damage Reduction: 10/evil at 19th level. I'll come back to this.
Greater Sustenance: No longer need to breathe can probably be subbed by using Necklace of Adaptation, so 9,000 gp.
Energy Resistance: 15 to acid, cold, electricity, fire, and sonic energy. Based upon the various resistance enhancements for armors, I'd say 30k is reasonable for 15. Multiply by five for 15 res to all those energies, so 150,000 gp.
Freedom of Movement: Ring of Freedom of Movement costs 40,000 gp.
Regeneration: I'm not sure whether healing at 1 point per level per hour instead of per day is worth noting, especially for getting this wonderful ability at 17th level.
True Seeing: Using the DMG rules for custom items, gaining continuous True Seeing would cost 90,000 gp.
Lowballing the combined total comes out to 561,400 gp, and I say lowballing because I'm not sure of certain equivalencies. As per DMG 135, a 20th level character is expected to accrue wealth of around 760,000 gp. If going by its monetary "value," VoP so far is worse than having the actual wealth come normally.
Even if it's equivalent money-wise, the fact is the character has to stick to the rules or else lose the bonuses permanently means it's generally underpowered. Exalted feats in general require the character to be PITA Good, so they're definitely restrictive at the very least, but can become hampering.
