[BruceBruce1959]

You have to buy what you need and can afford. All hunters will tell you even if you use cover scents if you aren't using the wind in your favor it won't matter how much cover scent you use, the Deer will scent you.
So I would say you're safe to get which ever ones you want but when you're Deer hunting try and keep the wind in your face and you'll be all set.

Good Luck to you..