User blog comment:Commander Marko/Item Discussion: Rebalancing Certain Items/@comment-24420226-20140503014830

BoTRK isn't underpowered. I beleive that, by 35 minutes or so, it will actually deal more damage per hit than a fully stacked BT against most champions. The really nice thing about a BoTRK is its cost efficiency and how it's relatively easy to build. the only real reason to forego this in favor of a BT is when you have really strong AD scaling on your abilities; that's why you see BoTRK on ADCs like Trist, Kogmaw, and Twitch. I've actually seen some Graves rush this to force duels (atk speed+atk speed steriod+slow+stacking resistances=you can't win that). Unless they changed something recently that I am unaware of, BoTRK is still doing exactly what it has been since S3 and doesn't need changes.