Tyler, there is 1 and only 1 reason that the farm that I grew up on still maintains bulk tanks... the nearest station is almost 4 miles away, and on the other side of town. It'd cost a fortune in time and rubber just to get there and back, as well as offending the flatlanders' delicate sensibilities with unclean farm equipment in town. Dad & my brother have never been able to get more than a couple of cents below pump price for a 500 gallon delivery.
These days, Steve goes through a lot less fuel than we used to. Dad used to get fuel deliveries probably 6 times a year, with 1,000 gallon tanks of diesel and gas. Now, it's a couple of 500 gallon tanks, and I doubt that Steve orders more than 1 a year.