Have you ever been taken by a bait and switch scam? Maybe the ad sounds a little too good to be true, but you figure it might just be worth a shot. You arrive at your destination only to learn that the product in question is not really available or there is some other "catch" to getting it for the low price that was offered. Well, now that you are already there, will you buy the item anyway if it costs more if you don't meet the secret requirements? Will you ask for a rain check if it's conveniently "out of stock?" Will you say no to that item but go ahead and buy something else? These tactics frequently bring in customers, and some of them will stay and buy something.