here is how we do it here. If i am digging and you need fill and it is within the turn time i have quoted i will haul it to you all day , trucking included. that we i save on the dump fee and help my friends out. when i am backfilling and need fill , i get it hauled to me for free. of course we are charging for the export and import, but saving on dump fees. now there are a few guy's who can't get anyone to take their material and have to haul it to the dump. so they have a higher cost on export and have to self provide or buy import