Item sales will be purely optional, though. According to VG247, Blizzard chief Mike Morhaime told the Activision Blizzard investor conference that the company sees micro-transactions as an important part of World of Warcraft's future. "We... expect digital sales to increase in the future, and plan to take advantage of it," he said. His comment follows the appearance of the pet store earlier this week, offering the first ever sale of in-game items for WOW. Morhaime offered reassurance ...