I think if YOU PLAY your PS2 for more than 5 hours in a day(like a weekend, or a day where there is no school/work, aka Vacation) you're spending too much time on it. If people trade off on the PS2(like 1 person plays for 2 hours, then another person plays for 2, then another person plays a while) it isn't really overusing it until you reach somwhere in the 7-8hour range per day- that's a 24 hour day.... otherwise you should be spending your time eating, sleeping, maybe doing homework(*psh*) or hanging out with friends(if you have any that are available)