I purchased a bottle of Aventus from Fragrancenet. Sprayed some on annnnnd it smells nothing like my samples. I don't know why, but it does. I'm not one to believe in batch numbers but I'm convinced it has to do with the atomizer, since I have one my left arm now, and the other on the right, and they are clearly unique from each-other.
In the meantime, I have layered it with Midnight in Paris and I am liking the result.
So basenotes, have your samples ever been misleading? Does the atomizer really have an effect on the smell of a perfume?