Boo-fckuking-hoo Ed, I pay 600 bucks a year to register each of my cars, and between 5-600 for each bike, depending on it's capacity. Of course, the majority of that is "Transport Accident Commission" (TAC) personal injury (not vehicle) insurance, but even so, with 3 (about to be 4) registered bikes and 4 registered cars currently, I'm paying my state government around 3 thousand bucks a year for the privilege of owning a few motor vehicles! Suck it up mate, you've got it easy! 
Wait, weren't you Aussies telling us you had free national health care?
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How is that funded? (Oh never mind, probably off-topic, anyway.)
Here in California, they doubled the registration and "use tax" fees on all vehicles last year... And that was after a fee/tax "adjustment".
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No real reason other than they can, and want more money to give away. But, they still could not bring themselves to cut any pet programs supported by lobby group campaign contributors. So, to help "balance" the state budget (with a still increasing deficit btw), they closed all the DMV offices an extra day/per week, cutting DMV personnel income by 14%, to spare the populace the normal anguish and frustration of a DMV encounter on those days. Hey, it's a win-win for politicians!
Seems like NJ politicians learned well from California's example. Can other states be far behind?
I won't be having 11 bikes for much longer, me thinks, (even if only eight of them are registered at a time).