I actually didn't mind Dead Space 2, it wasn't as scary, sure, but it was still okay, if not as interesting as the first. EA is just greedy and retarded, though. Math time, I suck at this, but it's pretty simple:
5,000,000 x 60 = 300,000,000. So they need 300 million to cover costs? Even saying they want to make 150 million to waste on other exploits (like making Origin even shittier). That's 150 million. I haven't developed any AAA titles lately, but I highly doubt that a 9-figure sum is really necessary to cover expenses. It's likely they'll use the same engine, perhaps with a few graphical tweaks, as well as a lot of the same assets. Then maybe salaries for two years for maybe 100 people. So the only explanation I can come up with is that they want a 400% profit margin or something.
Honestly, how fucking greedy can you get? Here's a genius money-saving idea EA: stop using shitty marketing tactics, you'd stand to save tens of millions and a lot of face.
For comparison, Battlefield 3 has sold 18 million units before March 31, 2012, and the giant Modern Warfare 3 moved over 15 million in the first two weeks. These are two of the largest shooters out there, and they expect a more niche game with a far smaller fanbase to pull in a third of industry-dominating shooter games... End rant.