I remember back in the olden days when big renders for me were 38 hours. :) Actually, my longest render was 22 days straight. It was a poster-sized version of the Fountain Flats image in my gallery. What slowed it down is something you can't hardly see on the little bitty one in the gallery: splashing water peeking out from behind about a dozen volume clouds. Yikes! Bryce's long renders bother me, but not overmuch; I accept it as the price I pay for complex images. But I did get a faster computer to cut my renders down to 11 days. :)