If you've got an older PS3, you might be wondering how much this extra energy consumption is going to cost you over the course of a year. Unless you're playing a lot of video games, the difference isn't that much. If you generally play for about 20 hours a week, you'll save $13.74 per year using a PS3 Slim vs. an older model. If you're hardcore enough to rack up 50 hours of gaming per week, you'd still only save about $100 over a three-year period. In other words, the PS3 Slim may make you feel better, but it won't make much of a difference in your bank account.
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