Hmm, i'm not sure. Most games purchased at full price:
Wii + 20 games
Xbox 360 + 5 games
DS + 11 games
Some of our games are above the average cost -- for example, we have two guitar hero games and two guitars. We have multiple controllers for everything -- 3 Wiimotes, classic controllers, etc. We only have two Xbox 360 controllers though. I don't think it's been all that expensive compared to other entertainment costs (or even other electronics costs), so I haven't kept track of it. We did buy a nice 50" HDTV also, but I wouldn't factor that into the cost of gaming.
For example, I spent more on Camera equipment and lenses. One camera lens is more expensive than a 'next gen' console.
You spent $40 on a piece of copper?! You shouldn't pay more than $4 for an HDMI cable unless you're buying thick-guage wire for in-wall installation or long distance.
