I dip and I voted that dipping is more disgusting. I don't like dipping in public and if I have the urge, I will be discreet.
Yes, even I think it looks disgusting when I see a nearly full Aquafina bottle with my brown spit containing black floating flakes inside.
But I dip because it is advantageous. I can dip during the movies, on a plane, inside a restaurant, etc. and as long as I am slick about it, nobody knows. I can also actively use both of my hands while I am enjoying my nicotine. I can shoot and run drills during carbine and pistol classes while actively dipping, without having to take a break to smoke. Those who dip sloppy, make all kinds of noises when they spit, and don't know how to tuck their pinch toward the back of their mouth, are their own worst enemy when it comes to enjoying the luxuries of dipping.
Most importantly, I can dip, take it out, and within seconds walk into a meeting without anyone having a clue. I smoked when I was younger and I hated the residual odor. I also hated that there was no real way of hiding it. I'm not ashamed by any means. Sometimes I just don't want everyone to know. It's much easier to maintain a professional image when you don't have lingering odor for hours. It also affected running and weight lifting. No, dipping is not a healthy alternative......but being a physically active person, it doesn't hinder my performance. And lastly, being that I rent my home, I don't need to walk outside every time I need a nicotine fix.
TL:DR -- Yes, dipping is gross. But being a former smoker and now a current dipper, it is by far more advantageous to dip than it is to smoke.