Because of a software glitch, Tesco, the world’s third-largest retailer based in the United Kingdom, offered a new iPad worth £659 ($1,021) for £49.99 ($77) on its website. Within hours the news exploded on Facebook and Twitter. Some customers ordered as many as 20 iPads and insisted that Tesco honor the advertised price. The company quickly corrected the online pricing error and would not accept orders at the incorrect price. Was Tesco obligated to honor the offer?