Even if you do not use photographs your customer is likely to want them for use in promotional material or for space management. "Space management" is the use of product dimensional data to plan shelf placement and display for maximum marketing effect and profitability. Widely used in the grocery industry this usually involves the use of images of the product to make up planograms, visual representations of supermarket shelves stocked with products. Various arrangements can be tried for visual appeal and predicted profitability based on typical sales data.
By having photographs available for your customers' use you are adding value to the product or products you are offering them.