The difference is about $19. The difference is that the less expensive package includes both Photoshop and Lightroom.
Thanks! I for that part... Just wondering why they have a package triple the price for one program?
I doubt you'll find answers regarding "why" It's as simple as they have a rate for single app subscriptions, and they have a special package rate for Photoshop/Lightroom.
This document explains the differences between the Creative Cloud Photography Plan and the Photoshop single app plan - https://helpx.adobe.com/photoshop/kb/differences-photoshop-creative-cloud-photography.html