Why?
It's just Half-Life but with better graphics.
No, it's not. Don't talk about things you obviously don't understand.
So you're telling me everyone's too broke to pay 10 dollars for the original and nothing else for Sven coop., AND you're THAT picky with graphics?
Kids. Buy the original. A graphic mod shouldn't have been waited on for so many years.
Sounds like you're suffering from a case of nostalgia blindness there. Half-Life 1 is a stuffty game in every aspect of the word - at the time of it's release it was groundbreaking and special. Compared to the design, gameplay, and looks of modern games it's a gigantic piece of stuff. And as I'm a fan of the Half-Life series, I'm very excited for Black Mesa so that I can re experience the good parts of the original without having to deal with a pile of ass.
By the way, it's not just a 'graphics mod'. And even if it was, I don't think you understand the amount of work that goes into rebuilding an entire game from the ground up.