Apart from the big players like Adam & Eve, Adult DVD Empire, thier are very few companies that offer a true white label and have the merchandise onhand.
Adam & Eve is the only one I would say, that I know has invenotry on hand. The rest, sometimes have just one unit and will order from the distributor when a customer places an order.
Plug for me: We don't offer a white Label, have talked about doing it, but haven't gotten the interest from affiliates to do so. Our store
www.eBoobStore.com offers 25% to the affiliate which is higher then most other companies. We do have all our merchandise on hand. This is really hard for toys, which we buy from third party vendors and some are imported the UK, but we do it. Our Store has a feature that when a prodcut is out of stock it removes it and the customer doesn't see it.
I just don't understand why bigger online stores only order one unit of each item, specially with all the advertising they do.