Sure, red plant is annoying and health plant I like but doesn't add much to the game but VISION PLANT is really cool. Vision tools make league so much more tactical, and the best part? YOUR OPPONENT CAN SEE THE SWEEP! It's not free vision! If the enemy jungle risks a sweep to see if I'm gankable, I can see it and back off. Risk the sweep to see if you're clear to do dragon? You might have just TOLD THEM you are doing dragon.
Conversely, a team that is behind gets mostly benefits from sweeps, as it is hard to establish vision when you don't own the jungle. Whether you are doing the sweep or the opponent is, a behind team will learn of the opponent's presence.
Sweeping at the right/ wrong time can be the difference between wasting vision and gaining SUPER valuable knowledge.