Price Editor vs Security Editor

[Geert Janssens]

GnuCash has both a price editor and a security editor.

The distinction between these two is not so clear to me. I can see that the 
security editor doesn't allow to enter exchange rates between currencies. The 
price editor is currently required for that.

On the other hand, you can use the price editor to enter stock quotes, 
although not really as flexibly as in the security editor.

This is confusing (from a user's point of view). So what's the story ?

Geert