I don't think that the new tech stuff makes us better hunters, but it does make us better shots. Faster arrows, and tighter groups. If you remember back though, in the mid to early 90's a wicked fast bow was flying around 250 fps. Now there are several manufacturers with bows pushing 330 fps. They were killing deer with those speeds back then, so it isn't necessary really. But as was stated above it is more forgiving if you misjudge distances.