I don't think scents are a cure all for everyday use.

I only use them as a tool to address a specific problem if it seems useful. For instance if the deer I want is staying in impenatrable cover, I might try to use it in combination with other tactics to draw him out for a shot.

I only use it in combination with other tactics, deer don't normally just smell a doe. They also expect to hear or see something. Give them a combination to suggest what they expect to expirience and just like a hot teenager they will see what the want to find. Most times just a little flash of white, a rustle of leaves and a sniff, and a freight train couldn't stop him until he gets close enough to figure out something funny is going on.