Leader ads designed to get you in the door and when they don't have the item, show you 'other' options. One company I absolutely abhor is Optics Planet. I have ordered stuff from them where they show "in Stock" and then they come back with a 3-4 week estimated delivery time. And, when that time is up they give you another delayed delivery date. I'm waiting for something from them now that they said could be delivered in a week. So far? 5 weeks and 3 more to go now.