I download games too. Its great that guys out there use brains and won't use useless protections which costs extra money and are contraproductive. Since protection bothers only legal buyers (you know activation, reactivation, registration and god knows what else pirates don't even have to see) and ppl don't have to risk being infected with malware using keygens and cracks. I believe that there is also no money loss in piracy. If i don't know and cant try game, what's the point of buying it? I trusted my guts and preordered demigod, because I believe in Stardock, Gas Powered Games, Blizzard (can't think of others right now) to produce unique games always worth buying.
But for others its mostly paying for crap job made using some hardass template eyecandy graphics,without any gameplay idea at all. Probably lead under university guy in tie who barely seen any game ever and goes by charts.
I don't see need for demo, if someone want to play let them play fully to get feel of this great game, of course no multiplayer, support or download . And no Rook miniature .