Where the game shines is its "story episodes".
from a review today:
If enough people subscribe to the game — Needham said it could be a success with as few as 50,000 subscribers per month, compared to more than 11 million for Warcraft — the 80 to 120 hours of story included with the game disc
50,000 people. That a huge difference in number.
(c) 2010, Los Angeles Times.
February 1, 2010