If it's worth saying, but not worth its own post, then it goes here.
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I did not intend that to be taken literally. I picked an extreme example to make the effect intuitively obvious, not because it was realistic.
If you think the effect doesn't exist, or is too small to be worth mentioning, at realistic levels, then that seems worth saying. But it doesn't seem very interesting to say that my example was unrealistic.
There exists an amount that Bob can value a loaf of bread, where he's willing to pay $1 but not $2. Nothing I said is inconsistent with Bob valuing the bread at that level.