Except the existence of D3 wasn't even announced until 2008, releasing four years later - and they didn't rely on the donations of backers, nor did they promise it'd be out in 2-3 years or bolt on feature after feature (and a FPS), nor did they push the limits of graphics cards and whatnot and design it for two generations over.

I could go on, not sure though, I think it's a moot comparison.