Sometimes the retailer's site sets tight restrictions on how often we can pull for data... and incorporating a new item causes a temporary (less than 1 hour) delay getting it into the fold.  If the product is from a retailer that we haven't integrated with yet then someone at NotifyPrice has to go in and "teach" the computer how to parse the price and availability information. After that is done then any user can add an item at that retailer and it should work right away (except that first exception we talked about).