the only reason to buy up your color level, is
A. neg a blog better (waste)
B. Think you are better than others (waste)
C. Think a higher color makes you more important. (not true)
The only reason to up your color to a point, is shops, games,and stars. And honestly, stars is over rated IMO. Who wants to stay up all hours, and let a popularity contest depend your fate. (or spamming for a win)
Otherwise, your game is rated on the number of the games you place in, which is for free.
Let your gaming, your wins and loses speak for them self. No need to pay for it.