Better Sensitivity
Fishing lines, rods, reels, etc. are all not just tools for fishing. They also acts as transmission lines the way telephone lines do. Vibration from the lure is sent up to the angler via the line, through, the rod, the reel, and on to the angler. On a bait-casting tackle we get to feel the bumps, structures, terrain, etc. while we are reeling in our lures. We also feel it when a fish takes our lures which is a lot of excitement and fun. Also, we get to react fast.
For bottom fishing the game is different if one just cast out one’s bait and waits for the rod tip to bend of for the line alarm to make noise. But for those that hold on to their rods with the line hanging on a finger to feel the bite; one feels the currents, and the bites. Seldom does one feel the terrain. Even when reeling in one’s lure, the transmission of vibrations seems to be lesser on a spinning outfit. This could be because of the distance between the lure and the hands of the angler, since the angler does not have the spool in hand while reeling in the lure.