I understand the whole sense of outrage from such a large number of people pirating copies, and I can see why that would be frustrating, but, at the end of the day, what you care about is SALES, not pirated copies.
What you should be asking is: Is the game profitable, and is there any way we can make it more profitable, not how can we reduce piracy. I'll admit that, at first, making more money and reducing piracy seem to go hand in hand, but not only are most pirates not going to pay for your stuff, for whatever reason, but pissing off legitimate customers with drm more restrictive than disk checks, serial numbers, etc. will only end up hurting your bottom line, instead of earning more money.
If you really think restrictive DRM is justified, look at how horribly Spore sold, compared to the initial hype surrounding it, compared to the amount of money spent developing the DRM scheme that caused that bucket of shit to come raining down. In the end, anyone who advocates sacrificing the bottom line over some sort of moral outrage or sense of unfairness should probably be removed from any decision making position, because when they aren't, it hurts everyone involved.