Re: Discussion Area
It's certainly nice to know a level 20 wizard who is happy to cast Permanency for you.
The "Spellcasting services" description includes to caveat "If the additional costs put the spell's total cost above 3,000 gp, that spell is not generally available."
Of greater concern is that you're getting the equivalent of a +5 weapon enhancement worth 50,000 gp for the bargain price of 9,100 gp. I suppose that it's not really your fault. You asked the GM and the GM said yes.