Did I miss a memo or something or is this an error?

I'm not sure if it was formally announced but in the Beta Wardrobe you can buy a layer for 75k

- Ahhh~ Well thank you! :) That answers that. :)

To those who are still new to Subeta, this 75KsP purchase doesn't add a layer, the layers are fixed and cannot be added to or changed. It temporarily increases to the allowed total number of items you can wear at one time for one of your layers one more item, up to three more than you are allowed, for a month.