When you get into budgeting finances, 1 USD a month savings is just as important as 10 USD a month savings. If you take the attitude that 1 USD here and there isn't important, might as well spend it, then you'll save a LOT less money. If you take the attitude that 1 USD here and there is important you'll save quite a bit more money.
Over the course of a month whether in electricity, other utilities, food, gas, etc. there's quite often 50-100 different opportunities where you can save 2 USD or less. Whether it's driving on roads with less stoplights or turning off lights that aren't in use or using more efficient utilities, fixing leaky faucets, getting the 8 USD meal instead of the 9 USD meal, etc...
Everything adds up. Once I started budgetting and accounting for even the 1 USD items, it was easy to save up an additional 1-3k USD a year. All without major sacrifices or excessive adjustments to daily life.
Is the electricity savings from this going to make or break a budget? No, probably not. Nor will the other small savings from something else. Or the other one, or another one or... But added up if you saved on all the little things, it becomes one big pile of cash.
Anyways, you'd have gotten more headway from me if you mentioned the savings in electricity over the lifespan of the X360 Slim wouldn't come close the price I have to pay to replace my old one. And normally that would prevent me from getting it. But I've been wanting an X360 with HDMI for a while now, and while I've been waiting for the damn thing to RROD or die some other way, a 360 Slim is a good enough reason to replace it now...
Regards,
SB