People are already behaving that way: They examine the product in a retail store, then go home and find the best price online. Retail stores are going out of business as a result.
We like to see and touch many things before making a purchase decision. To fill this niche, large manufacturers will create showrooms, like the Apple Store, to display their products. Smaller manufacturers will pay to have their products displayed in new Showroom companies that will spring up to provide this service.