Originally Posted by
Tech614
Competitive trading card games was a proven market already. Magic the Gathering literally printed money. Blizzard made a popular digital option. Let's not kid ourselves into acting like Hearthstone is not a trading card game.
I really hope you're not serious that MMORPG wasn't a proven market. It was more a proven market before WoW, then it is now. Everquest and FFXI where both very successful games before WoW, not to mention if we want to get into the runescapes, dark age and ultima's of the world.