If you think you need it, buy it and try it, if it doesn't work, its a gimmick. What one person swears by, another will swear it's a gimmick. I'd like to see truth in advertising, where if some celeb is going to promote something, they have to use it themself, but once again integrity is the issue there and no way to enforce it. Personally, I use bow, camo, stand, grunt tube, doe call, rattlin bag, and scent minimization. The tube, call and bag don't come into use until rut time, but I consider them essential to maximizing my potential for success during the season.