i think the biggest gimmick out there is that doe pee that costs like thirty bucks for like a 4 ounce bottle, i can't remember the name, but i know a couple guys who bought a bottle, they both soaked a cotton ball in it and after that, the bottle was empty. they hung them on trees about thirty yards from their stands, and one guy had a nice buck walk within ten yards of it and he never even looked at it. thirty dollars wasted.