Now, I'm not saying you need to buy a brand-new, top-of-the-line bow every year--or that older bows can't kill deer. I am saying that you will be amazed how much more accurate and deadly you are with a newer bow. These models have vastly improved technology. (I am not going to explain all of the tech stuff). This in turn makes you more accurate and confidant, and when you are in the woods confidence is everything. With the old, cheap bows--shooting 175 fps or a little better--if you misjudge distance by five yards, you could end up wounding a deer. But with today's high-end bows, five yards hardly makes any difference, and you are eating backstraps for dinner.