Mine's over 6 months old, ran for over 500 hours, including a few movies I watched on it. I don't track running time, but I know how many hours I spent on some games I played the most (The save file tells me =P, 4 games give me 300 hours so 500 is really an underestimate, I'm not so hardcore anymore I play less these days) I've always set mine up horizontally, no sign of RROD, even freezing is rare. It seems taking an average of running time, horizontal/vertical setup is meaningless since RROD suddenly visits and sits there, but I'm just curious. I know for a fact that there are launch 360 owners out there who have never experienced RROD. Perhaps reading about long-living 360s would encourage people to stop waiting and get one now.