I just think its a Noob thing. When I got my first pin (a WH20) I was so excited. And you are also excited to tinker and mod. LED's are easiest way to tinker.
Then your next thought is that color is so much more exciting than plain white and it will spice up the game. This is where the error is made.
I think most outgrow this or come to realize you cannot see the artwork with all that splashed on color. But obviously many do not.