Save the joining fee of AU$99 or NZ$60 (I don't know why we get it cheaper).
is it worth it if you fly once a year?
Worth joining and keeping for any flights your might take with Oneworld. If you take a trip to Europe you could get $50-$100 in points value.
but since i have to renew membership every years, won't the points expire if the membership is lapsed? (cause i don't want to pay $60 next year)?
Dont need to renew every year, join once and stay a member. Points expire every 2 or 3 years i think. Although I think Qantas let you reactivate them too.
If you travel long haul and infrequently get the points and spend in the Qantas store.
points don't expire if you earn and redeem every 18 months, i am a fan of Qantas Frequent Fryer over Air Points…and no renewal fees, or what's so ever….