Bag thoughts

I ride with rear panniers on a rack, triangle bag, saddle bag and one blackburn anything cage on each side of my fork. I'm curious about a bike packing style set up. Are there advantages over a more traditional touring set up with panniers that I'm just not seeing. Seems like having all your weight up high would not be ideal. I ride roads so not worried about panniers hitting stuff on a trail. Also looking at a larger bar bag but not sure how it would all work out with drop bars. Anyone have experience with both set up styles have any thoughts.