Many magic items have a cost based on the item's caster level, yet do not benefit from that caster level in any way. Magic Staves, for example. When crafting such an item, can a player choose to use the minimum caster level, rather than their own?
As Pathfinder SRD tells us,
A creator can create an item at a lower caster level than her own, but never lower than the minimum level needed to cast the needed spell.