Only like two people have actually asked for a rare change since the start of the game via the rewards system, mostly because of the fact that you needed IC justification to do it. Comparatively, you can now do it without needing that IC reasoning to ask for it.

Rare changes were almost never asked for previously to begin with, and most of them come along with a free associated super power. (IE, breathing fire, flying, whatever powers come from having horse legs). You get quite a bit of bang for your buck.

If it were purely going by my desires I would probably not give out rare changes outside of events at all - but since I know there is demand for it, I am allowing people to buy it with points as opposed earning it via direct IC actions. So I guess I see it as the difference between being given nothing and being given something for people whose characters would never ask for it on their own.

If the price was much cheaper, a lot of people would be snapping this up, since the IC limitations were the only reason they weren't before. Which is ultimately more people than I want to be doing that, at risk of making it lose all its luster.