While uc_stock can decrement the inventory and other mods (uc_multi_stock, etc) can prevent a customer from adding "out of stock" items to their cart, I've yet to find a mod that can completely remove a product from the catalog when the inventory level reaches zero.
The use case would be for a site that sells one-of-a-kind or limited run items where the stock levels can't/won't be replenished. For instance, hand-made wooden bowls or limited run wines.
Perhaps an additional checkbox on the product stock settings page to "remove from store when inventory is depleted" and a predicate similar to the one that uc_stock currently uses to decrement the stock levels upon a paid order status.
If I've somehow missed a module that contains this functionality then please be so kind as to point me in the right direction. Thank you very much for your time!