a) I took the average accross the country of 0.11$/kWhr.You don't know how much $20 will buy you because
a.) energy costs are different in different parts of the country.
b.) energy costs are different during different hours of the day.
b) 90% if not 99% of residental consumers do not vary thier cost on time of day.
Very few peoples computers pull 750Watts. By your own links, a pair of 295s in SLI is pulling 400W. How many people do that?Secondly, it's always worth it to conserve. $20 x 12 = $240, a free plane ticket every year. What if someone has more than one computer? That's $480 in savings. What if the machine is on 24/7?
So not gaming from the time you are 20 to the time you are 50, and not using twice the power a compuer uses, isn't even going to buy you a decent car? How on earth can you say that is worth it?Saving $20 a month, at 4% interest compounded monthly will net you $14,000 after thirty years. That would make a nice down payment on a Corvette. Or a second Corvette.
What stops you from using a green electric company if you care so much about the enviroment?Not to mention the environmental side of things..how much less coal would we burn if everyone reduced their electric bill by $20 per month?
If you reduced the draw of a GTX285 ino half you would only save 75 watts. A difference of 2$ a month. I don't know anyone who has the time to game 8 hours a day 7 days a week who gives a shit about 2$ a month. Furthermore, even if you invented this magical card and assumed it would have a life span of 2 years, unless it cost less than 25$ more it wouldn't be worth it.