This is short-sighted. The amount of extra power the computer draws at a high power state while performing boot-up tasks makes the sleep power draw a better option. Not to mention the sleep power draw happens at off-peak hours where the grid can provide more green power vs. the dirty mid-morning peak power. The break-even point that I’ve calculated across the machines I’ve plugged into my meter is approximately 3-4 days. With a big ol’ “it depends” sticker slapped on top.