Lol. It's literally pennies. Happily I can afford pennies with no concern.Why? I just can't figure out for the life of me why anyone likes their wallet getting thinner and thinner as your engine idles away precious fuel as useless fumes at $3.50 a gallon while you're just sitting there motionless.
Another clever way to disable the ESS is stay in an area where you keep your JT in 4LO, that always keeps me happier anyway.
Personally, I'm quite fond of money saving feature$ that don't affect power & performance.
Once again, This is just my opinion.