Wicht
Hero
At no point did I say you could use the Wishes to chain cast 9th level spells, though I suppose you could Wish for scrolls of Astral Projection if you were so inclined.
You are misunderstanding, Astral Projection, as a 9th level spell, cannot be used, of itself, to power a Wish spell, which is also 9th level.
Now here's the interesting question: What is the basis in the rules for that interpretation?
The wording of the PF Wish spell.
I have no doubt that is how you would rule to make Astral Projection less balanced, but that is not what the spell says. The spell says that it creates copies of you and your equipment. Items with charges will then be copied, to be used in the normal fashion.
If it helps, think about the Astral body; when it takes damage, the wizard's original body does not take damage. If the Astral Projection takes lethal damage, the spell ends and the wizard wakes up from his coma. His body's hit points are not linked to his Astral Projection's hit points. Explain to me why the charges in his item would be linked to the charges in his Astral Projection's possession?
I think that, ideally, the power for the effect in the astral plane must come from somewhere, and the logical place is that they come from the original items. I would point out that the rules could use some clarity here, but it is against the spirit of the Magic Rules for a 9th level spell to power other, multiple, 9th level spells.
Ruling that the effects are temporary, or that the charges of the original item are used up, is going beyond what is written. Just because you can fix it doesn't mean it isn't broken; in fact, it is usually a sign that something is broken.
Actually, I think that ruling that the effects of the magic items was only temporary (in some cases anyway) is quite in the spirit of the spell; I just prefer the other choice better.
Just like with Wall of Iron, which creates an amount of iron that sells for far more than the material component of the spell costs. The DM can always rule that, perhaps, the iron is very low quality, or that the market value of iron is different than what is written in the books, but that doesn't change the fact that, as written, any mid level wizard has the ability to become a steel magnate.
I have a very good story (I like it anyway), that I have written about the so called 10 foot pole/ladder cheat. I might dig it up and link to it.