You pays your money etc etc.
The term "Authorised Dealer" is such a scam!
YOU can be an authorised dealer providing you agree to buy 'X' amount of scopes a year. Both good and bad. But there you have it. And the market here is pretty much cornered.
All Synta stuff (Orion, Skywatcher, Tasco, Saxon, Celestron, etc) & Meade and iOptron are all imported by "Extravision" who charge about a 1/3 to a 1/2 more than the equipment would cost you in the US, Canada or the rest of Australasia.
Is it worth it for the warranty? Hmmmnnn.
Probably yes.
Most buyers will find no fault with their gear, but these are complex, massed-produced items and quality control means inspecting maybe one in 50 or 100. Enough people seem to have to make claims on serious defects that you are pretty much taking a punt if you go the 'unauthorised' route. Apparently the service is quite good, though its also good abroad and they don't pay the 'OzTax'.
However; top-rate second hand from a reputable dealer in the US or Canada is a good option as even with shipping, GST & duty you can save as much as $2000 dollars over new. I almost bought a 2 month old CPC1100 from a Canadian dealer for 3900AU$ - scope, shipping duty/GST, everything all-in. But someone beat me to it.

If your imported equipment does go south, you're in no worse shape than if you'd bought unauthorised - you'd still have to send it to a dealer who could do the repairs for cash. But you'd still probably save some dosh.
Just my aggrevated opinion.