User blog comment:Kenetron/Creative Thinking/@comment-4068613-20140617101132

These items would give too much reach to the Doran's items, extending their usefulness well into the mid-game instead of being an early-game way to attain an advantage and shut down your opponent. If you could buy Doran's items without sacrificing your midgame power when you don't pull ahead early on, Doran's items would be way overpowered.