i was thinking more along the lines of "as you get more AAs" = 700-800 AAs total.. which = 0.01%.. it's obviously not an exact number because i didn't even count the number of people in my head, but it's pretty close
With the event master person about to do more GM events and probably dishing out more fame than in the recent past and I would think it's obvious that the 800 mark would be the race change. A title pales in comparison to being a perma absurd race for your class.
I'm sure we can think of some other non-substantial rewards for this other than race changes and titles. (but I can't :dumb