hi everyone,For my experiece, i always leaving my computer on except if i want go somewhere so far. If it takes just only 24 hours, i don't off it.And my computer still good. I always keep my pc rest about 3 or 4 hours after using (on it) about 72 hours. Sometimes, when i have a project to do, my pc on 24 hours/7 days.And my friend told me that, if we always on and off pc requlary at short time can make our bill high cause of the power to start/on computer ishigh."decision is yours"