I've used e-go plenty of times and 'never had a problem with them', 30KG's cost $26 one way from Brisbane. With shipping you must understand that a van, truck, ship, plane, container or even your lunch box, only has a certain volume or weight that can be moved. Which is understandable as freight companies work on IIRC 160kgs per cubic metre at $36 a kg(or thereabouts), so to move that massive box of feathers will cost a fortune because of the volume.
Using the above example of a bike from Sydney to Perth, broken into components Frame,forks, wheels, engine, tank/seat/mudguards.
Engine and seat maybe in a plastic tub, ditto the tank and guards, wheels wrapped in cardboard, bare frame with forks/swing arm attached. All those shipped would be something like $300-400.