Manufactured homes, both modular and mobile offer benefits to buyers.  Factory constuction speeds up production.  The assembly line generates less waste, keeping costs down. Manufacturing technolgy  has improved over  time, reducing  mistakes and boosting quality.  Spot inspections for quality control  at the factory also help contribute to smoother production.  The lower cost per square foot, wide variety  of floor plans and choices of exterior styling  and sidings offer special  appeal to budget-conscious buyers for manufactured homes. 

Taken from ~ Ehow Differences between Manufactured Homes and Modulars