Originally Posted by jdbennet

psu wears out quicker if its on, hard drives dont make a difference (they may spin longer, but the initial spinup/down wears them just as bad), but apparently the components on the mobo last longer if its on (a friend once told me that 10 hours idle = 1 cold boot)



leaving it on is better. faster

vista loads your most used stuff into RAM cache and when you reboot it has to recreate this.