I think it's this AND that big price scares away lots of potential customers. Maybe early to mid 2020 will see a new one and that will still be less then what Ghost used to cost.
This one's 6" https://www.amazon.com/RYOT-HeadCase-Carbon-Lockable-Technology/dp/B07B1Y9VRF/ref=mp_s_a_1_1?keywords=RYOT+HeadCase+Black&qid=1569989507&sr=8-1