Yes, but a genuine light, single cab truck is significantly cheaper than the crew cab super duty, especially once you account for fuel economy and maintenance. Its like spending more up front for a more effecient appliance. You end up saving in the long run despite more cost up front.

You also have better operational flexibility. One truck could take off with 2 crew members to another jobsite once the bulk of the work or certain equipment is finished at the first job site. You could also position the trucks and equipment at different locations on a large multi acre property.

Under most circumstances, 2 light trucks makes more sense than 1 super duty.