Suggested by Matt on AppSumo: https://appsumo.com/products/licenceone/#q849707

This feature would allow LTD buyers to make a comparison against the subscription price of a software they purchased as an LTD, then calculate the amount they've actually saved since their LTD began.

Of course, subscription price would have to be a manually entered field as it'd be too difficult for LicenceOne to track the different tiers automatically :(