OK, SO here's the thing. There is not a system I can think of thats uncrackable, so its not if? but when? How fast could it be cracked?
Given that cracks are a fact, is DRM worth the hassle? Afaik DRM has done nothing but hurt the industry. Except one case. Steam, and that's because DRM isn't all it is, and it lets up. Its by no means draconian, and has a good rep afaik to boot.
Again I ask you, would companies like Valve and Blizzard and Epic, and games like Sins of a Solar Empire, and Penumbra, just to name a few, exist without DRM. The answer is always AB-SO-FUCKIN-LUTELY. Most of the games that the aforementioned companies built their reputation and success off only required CD-Keys and maybe that you keep your CD in the tray. That's all you need, and the success of Penumbra, and Sins prove you don't even really need that.
I'm side tracking a little, but you can't just assume that the other party or any human being is guilty and then go from there. The system doesn't work like that, and if you think it should, honestly go fucking die, you're probably guilty of some heinous crime, probably child molestation or mass murder, and as such you should be burned Mr Guilty until proven innocent... or dead.
IN SUMMARY, I just want to say that I think the whole DRM argument is stupid, because no matter what you do, no matter how intense or draconian or whatever kind of DRM you add to your product, the best you can hope for is nothing. It WILL be cracked its just a matter of time. In fact at best you're doing nothing, at worst you are incurring incredible and public backlash from disatisfied or even enraged customers for no good reason. In fact the simple truth is that its costly, especially when it goes wrong, and it does. Its too much effort for something that does nothing except ruin your overall product. I for one do not see how this means that the PC platform is dead, or see the platform dying anytime soon.