Most of the "Per Day" items are 1.25x the treasure policy cost with the highest demand items (Life, Prison, etc) being 2x cost, and a few things being 1.1x cost (like a Rendered Weapon with no other rituals). Most "Times Ever" shots are 2-3 times their treasure policy cost because they're fairly cheap and we don't want to flood the list (or the game) with piles of one shots. A few things are much higher (Dodge, Parry) because they're actually very inexpensive to put out, but the restricted versions should be more expensive than the LCO version, so we've bumped them up just beyond that. A lightning aura weapon does take about 1000 points out of Treasure Policy, and the Bless 2/d + Bane Gift 1/d for a year does take more than 1000 points out of treasure policy as well. (The Dodge is what's screwing up the other one, and all of the Skill Stores are priced much higher than their TP value to make the LCO scroll more desirable).
To the best of my knowledge, no one has purchased any of the items, but with the exception of the Skill Stores, they're all priced fairly close to their Treasure Policy values. The idea is generally for people to spend their gobbies on LCO items, and if they hit the 20 ritual limit that they then have something that they can still spend their gobbies on if they want, though anyone has access to both lists.