Don't compare it to the entire balance sheet, compare it to how much you'd have to pay someone to optimize it.

At $500/store/year times 1,000 stores, you can pay an entire team of experts for a year to come up with a way to save that money, and come out ahead. That team's manager can then go to their boss and say, look, I saved the company half a million dollars a year, and they'll get a nice bonus from it.