Plants and machinery probably outlasts the working span of a Maintenance professional, definitely that of the Buyer who is supposed to take care of any Maintenance and Repair requirements. While initial years are largely maintenance free, the requirement increases with time with lower and lower capability at the Purchase to source replacements for such parts. Imagine a buyer being asked to source a PLC which has been outdated in a machine made 30 years back. Invariably the Buyer is not ready to make good sourcing decision, leading to large and costly overhauls, even sometime scrapping a large subsystem to be replaced by a new subsystem. Large capital Intensive industries could benefit hugely from this through a specialized service provider. Maintenance budgets can be curtailed through this to the extent of 20% to 30%.