some places are right on or near a major gas line. that they can tie right into, to fill there local supply trucks. other companys may need to travel to another city or some place to fill up there local supply trucks.
out of the 2 to 3 places that would deliver to me, central butane, over in norris, IL. gave me a descent deal with putting in gas line from house to new tank location, and from new tank location to shed. plus less hassle to deal with than couple other companies.
as long as i call and give a couple weeks notice, they are hear next day, quiet as could be, and gone before i dogs or i could notice. i tell them when ever they are out and about this way and summer fill. and give some discounts. so far in last couple years, it maybe a week or so before or a couple weeks after summer fill, but will give discount as well.
the other couple places, took a couple weeks before they made it out, always seemed higher in price. ya now that i said above i am going to be in trouble. *ughs* but it is just like gas for vehickle prices. there some small size towns that seem to be always lower, while once you get in the main bigger cities prices are higher.