Absolutely. I currently fork out over $1500 a year for 3 bikes (the beautiful XS, a ZX10 and a KTM450). Lucky for me, I have a company car which I have full use of so don't pay for that as well. I didn't spend anywhere near 90 days riding all of them conbined so wiill definitely be chasing this up.
Looking at this, in Vic you'll need to be a member of a recognized club (like the VJMC) and the rego costs for a 90 day permit is around $120 for the 12 months.