Well, there are blind buys and there are blind buys. Some fragrances I can tell I will love from just a whiff but many others take a number of wearings, even more than a sample, to really absorb. And some are just hard to sample because they are not available in most retail outlets. I've found Basenotes to be at least as good as test strips in a store in figuring out whether I will like a fragrance or not. In some ways that is not actually a blind buy so much as a well-educated bet.