N for negotiable

The user story can be rewritten or even dropped as a result of a discussion or negotiation. For example, a 3D preview of the product box can be replaced with just a few images of the product as a result of the negotiation. The annoying popup asking for a newsletter subscription can be dropped (probably should) after discussing it. At this stage, we are capturing the essence of the user story, so there is infinite room for negotiation.