There are a number of Out of Stock items in the Paizo store that are never going to be restocked for various reasons.
Shackled City AP hardcovers, AP issues, etc etc etc.
If there is no ability / intent to restock a given item, remove the price. Inevitably there will be those that come to acquire a Thing that they believed to be available. The out of stock notation is in a smaller font than the price.
We leave that in place on Paizo products in case somebody wants to know what the list price of a product was. (We generally just take down non-Paizo products that are no longer available.)
Cool. Maybe switch the larger font from Our Price to Out of Stock, make the smaller font MSRP or something similar?