Walmart does this with many items... so be careful.. IIRC I once was in the store (shopping) and they had a 2pack Pringles for 3.00, but if you bought them as singles they were 1.25 each.. Its a marketing ploy that is working for them.. many people now grab the "bulk" items thinking they are saving..
BTW.... I wish they sold a 6 qt jug...