I think the sale is to draw people to their dForce hair stuff. The links there in that dForce hair page are to at least 55% off of the recent stuff and 77% for some!
Dforce hair are one thing. But I looked for all store, not just the advertisings, not just DS4. It was a good catch

Stuff at $0.81 weren't to interest me, but for less than $2 on several others, hell yes.