You are absolutely right that stores need to think about how they compete in an internet age. However, the original question was about what responsibility the customer may have. It takes all parties or stakeholders to make a system work.

In that sense, customers shouldn't whine when they no longer have brick and mortar stores to go into because they took the short-term advantage of saving a few nickels on the internet. The point was not so much that we as customers don't have options that we can exercise but that to go into a store , take the salesperson's time, try on an item and then directly walk out and buy the item online is abusing the system.

I'm not for making a whole list of rules, but I am for calling a spade a spade as far as recognizing that some people abuse the system. I also am for encouraging a reasonable sense of fair play and responsibility on the part of customers.