The idea may seem like it's going to be overpowered, but my suggestion is that you charge outlandish amounts of AA for these skills, say 55 AA for a 2% increase in whatever the skill may be.
If increasing these skills does seem overpowered to you, perhaps you would consider something more fun related. Give us the ability to cast illusions with 100AA per illusion... Cast fireworks or something (I know this spell was put on live). Something to let those of us who have acquired ungodly amounts of banked AA's spend them on. And also give something fun to work on for those of us who have lost interest in getting any more unnecessary AA.
Just a thought and always welcome any sort of opinions or criticism. Again this is just an idea and I'd like some others to expand on this or tell me no way
