Wow, that all sounds like a pain in the ass. In our state there's only an inspection if there's a title issue. No annual MOT or anything like that. I can build or modify just about anything as long as it was already licensed and as long as I keep it it will never have to be inspected. We can just buy a collector plate if the vehicle is over 30 years old, no need to be in a club. No more annual fee but you need to have another registered daily driver. There are other states that do have annual inspections but from what I can tell it's just a money grab.
Yeah mate, you guys have it good. The trouble with Oz is that we have a land mass about the same as the USA, but with only 1/15th of your population, so the various governments need all the dollars they can gouge to pay for the infrastructure. Here in Victoria we don't have annual MOT's either, but they do in the next state over, which must be a pain in the arse.
I just need to get a roadworthy certificate when I buy a bike and like you, don't need another one during my ownership, unless the cops catch me riding it with 10 foot long home made girder forks, straight out pipes, bald tyres and a host of other stupid sh1t some people do to their bikes.
Annual fees are a pain, but that's the price you pay for living in a big country with a very small population.