When constructing your product, consider what the market it looking for and to what they apply value.
The purveyors of hot dogs sell hot dog sausages that are longer than the bread rolls so the sausage sticks out at both ends. Delighted people say “Look how generous they are with their sausages!“, rather than miserably mutter “Look how stingy and mean they are with their bread rolls“.
They use under-sized rolls to give the impression of adding extra in the component where the punter sees value: the sausage.
But by being mean with the bread, the punter remains hungry and returns for more, sooner.
It is not enough to know hat you are selling: you also need to know what the customer values and tailor your product and marketing accordingly.