Don't forget electricity costs since we're getting detailed here. It can really add up depending on how much you play and where you live. I don't recall the site but if I've read the PS3 uses 200 Watt/hrs, the 360 180, and the Wii 20. Such that each hour you average per day would cost you between $5-10 each year on the PS3, $4.5-9 on the 360, and $0.50-1.00 on the Wii (in the US, Japan and Europe would tend toward the high end and higher I think). If your household averages 4 hours a day thats up to $200 over the life of a PS3, $180 for a 360, and $20 for a Wii. This isn't even including more heavy usage (my N64 was on almost ever second I was at home when I was in high school) or if you take part in folding@home and run your PS3 non-stop. I know this is very little in monthly terms, but then so is buying 10 video games over 5 years.