User blog comment:Big Lupu/Why do wards take slots?/@comment-5556439-20130608170533/@comment-1985493-20130609131808

Remaking the scout mastery would be terribly unbalanced. Essentially, whichever support is winning will have ENTIRE ward control simply because they will have more wards to throw down to destroy the losing support. The counterplay would be confusing and convoluted, and it's just so much easier to have a pink ward system where you can control a small area at an extra price.