Bulk storage bins are useful for many reasons.
*You can fit more than 100 objects into them.
*They stop all decay of objects put into them. (Although items receive a 5% reduction in volume every month)
*They allow players to average the QL for items this is not normally possible for.
*They allow players to combine items it is not normally possible to combine, such as logs, and split up large combined items into smaller ones, such as lumps, cotton and woodscraps.