I discovered something similar.  HD advertised a sale.  Honey oak in the wider plank style showed orig 50 something a box on sale for 20.  In the laminate aisle, trafficmaster honey oak in the typical plank width was selling for 25 a box, not on sale. The sku number was the same. The hd salesperson said that both prices were valid.  Very confusing to know if you are getting a bargain or not.   HD says it was a special purchase and after it's gone it's gone.  Perhaps discontinued colors and styles??  Anyway, I was tired of looking and bought the stuff on sale.  I read in one of the posts that underlayment wasn't necessary but I think it is.  The "good" underlayment ended up costing half of what the laminate cost.