$1000 gets you much less than you did 10 years ago. Major retailers (eBay, AliExpress, etc.) that ship to Australia have had to implement collecting GST on low value goods. However, lot's of overseas retailers do not, and buying over $1000 frequently gets expensive (as it's 5% duty + 10% gst + broker fees).
Will the government ever increase the $1000 threshold for buying international goods for personal use?
have a chat with your MP?