The disadvantage of sending a letter through the air, the cost is very high.
The disadvantage of the delivery of the motorcycle to slow the amount and risk may be due to an accident.
The disadvantage of the delivery of the aircraft consumes. energy and fuel is expensive.
The disadvantage of the submission of the individual to make a mistake, because it may be the fault does not match the address listed.
The disadvantage of the delivery of the ship is delayed it. Shipping a lot less if the product will make a loss.