It's all personal preference. Most Storm balls have rolled well for me, so I stick with them. Some of them smell/look good. Others smell/look bad. My decisions as to which balls I keep versus which ones I ditch have to do with ball performance and usefulness in my arsenal, not the smell or color. With that being said, as others have mentioned, if the ball looks cool and makes my bag smell like something other than old bowling shoes, that's a bonus. The scent additives are a talking point, marketing, plain and simple. I think you would be hard-pressed to find any serious bowler who selects equipment based upon those factors. It's just something to draw in the casual bowler and to get/keep people talking about the brand.