Oh sure--I've used that strategy myself for things on occasion. From their perspective--sure there'll be some people who do that sort of thing, and who still only buy whatever they would have purchased anyway. But then there will be the people who say "Aha, I'm just going to make multiple visits to buy single items" but end up buying extra stuff on impulse on some of those visits. Having those sorts of folks come into the store more often is a plus.