Personally, I haven't had the slightest interest in Starcraft 2 ever since I realized that it would feature no new mechanics or ground-breaking changes to the RTS formula (which is what I normally require to take an interest in an RTS), and basically just be a graphical upgrade, with units balancing, online play improvements, and limited amounts of new content...
...until I read about the three single player campaigns. The actual matches themselves might not feature anything even the slightest bit revolutionary (or even inventive), but one free-roaming mercenary campaign with in-between mission upgrades and purchases, one RPG-inspired Kerrigan-focused campaign, and one with diplomacy and large-scale strategic choices, with 26-30 missions per campaign, has actually captured my interest for the first time since the game was announced.
...until I read about the three single player campaigns. The actual matches themselves might not feature anything even the slightest bit revolutionary (or even inventive), but one free-roaming mercenary campaign with in-between mission upgrades and purchases, one RPG-inspired Kerrigan-focused campaign, and one with diplomacy and large-scale strategic choices, with 26-30 missions per campaign, has actually captured my interest for the first time since the game was announced.