Yeah, I read the older PS3's used as much as a refrigerator when in use or maybe in standby? Either way they consumed a lot of power even when in standby. I was surprised when I picked up my new PS3 slim this month that it didn't have a power switch. I agree that the should of included this but glad to hear it doesn't consume much on standby.
The fat PS3 used 1.22 W in standby, and the Slim uses 0.36 W. If you have a design for a 1.22 W refrigerator that can store a lot of food without spoiling, then you might become a very rich person.