Is it that expensive?  In terms of raw materials it may cost more, but not double.  The use of prefabricated parts (torso, limbs) reduces each tower&#x27;s uniqueness and therefore complexity of repairs.  Fabrication of unique beams is well within the repair capability of a mobile crew.  Is the actual material cost of each tower a major component of a transmission line cost model?  I am betting no; transmission wire, ongoing maintenance, land and rights acquisition, and monitoring probably make up the bulk of a transmission line&#x27;s cost.  Finding actual data on this is proving to be difficult, however.