Why Sonarworks Dont have a Upgrade From headphone to speaker one

HI, 

Like other Merchants Why Sonarworks dont deal in Headphone to Speaker pack with the Amount left. that will be helpful for everyone. now i am stuck with headphones pack. if i buy the headphones & speakers pack. what i gonna do with my headphones Id. Thats more manageable for us. 

Basically the upgrade So everyone can stay tuned.