I disagree. In your example, your false dilemma is trying to remove the possibility of dont answer survey (instead, you consider which day do I answer survey).

I disagree. In your example, your false dilemma is trying to remove the possibility of dont answer survey (instead, you consider which day do I answer survey). That's a false dilemma. But that's not the case here. The article isn't about trying to remove the option of don't buy book. This article is about using pricing to anchor a customer's expectations of what the product should cost by offering multiple price points.