My point is simple, if he does not know that you are there and you are patient enough to wait him out, your chances at killing that buck in the near future are better than if you take a chance because you got a little too excited (which also can tip the odds to his advantage)!!
I respectfully disagree
. I am sure that on the public land I hunt on, your best odds of making it happen are right there and right then. If I have a shooter in eyesight my best chances of taking him are now, and I will do all I can to do so. I have called more than a few mature bucks into bow range, some blind and some after they were seen.
I do agree however that overuse and improper use will do more damage than good. I am not a big scent user, and I for the most part use calls as a last resort to a skirting buck. But I wouldn' t pass them off as trash or gimmicks so quickly. They can be very effective in certain areas and at certain times. They have filled more than one tag for me.