Honest question:
If GI reveals this stuff online, including the cover, artwork, and tons of core information about their cover story, why in the world will anyone be compelled to go check out the issue in a bookstore/newsstand, much less buy it?
Why buy a car when you can just borrow your neighbor's?
Why buy a movie when you can watch it online?
Why have kids when you can just kidnap a midget?
Kidding, obviously. But from what I recall, most people who get GI basically get it because they bought an edge card from Gamestop.