Illwinter has stated, that non-standardly priced mages are priced cheaper/more expensive on purpose. However, I still think your balance mod will help by adding an option to those who don't like the current pricing.
I don't remember your name, but I remember some of your threads and ideas... I was going to link your old thread about Exalted mod and the pricing of random magics that followed from it, until I noticed who started it all...
Welcome back!