Alex: I cant speak for all ink manufacturers but many of the Wilflex white inks are available in 1 Gallon, 5 Gallon, 30 Gallon, 44 Gallon or 50 Gallon Drums. If you use the 1 gallon list pricing as a "baseline" the per-gallon savings compared to single gallon pricing average between 25% to 30% in the 30, 44, or 50 gallon drum sizes. In addition a printer purchasing these inks in drum quantities is almost certain to qualify for a volume discount from the distributor, so the savings should be even greater than purchasing the product in 1 gallon or 5 gallon sized containers.