they plan to inspect merchandise in a physical retail store and later purchase it online for less money this holiday season, PriceGrabber said in a release.That technique is called showrooming.he is good news for online retailers like Amazon.com (AMZN), but not good for retailers such as Best Buy (BBY) or Wal-Mart (WMT), which sells goods online but depend on in-store sales for most of their bu