Part of what interested me in the article was the time requirement to find the best price. Economists tell us that prices are supposed to be signals indicating how utility can be produced with the least opportunity costs. In this sense, exploring alternative prices can be seen as a productive activity. Here, the problem is that business is creating an artificial need to muck around to find the best price.
Parents take eggs out of the refrigerator to hide them on Easter, because children enjoy looking for them. This article suggests that the stores are wasting their own energies manipulating prices in order that they can make potential customers chase around for the best deal.