These markets are never the same as the last- I've been to three (two in Brisbane and one in Melbourne) and the stalls, trucks, variety and the overall vibes were such polar opposites to one another! Always go with a bit of cash to spend because there is no way you'll be able to pass everything up. There is always an amazing range of original art and craft pieces, de-licious food and drink on offer, there is even some pretty great live music!!
I could keep listing the different things they have available but that could go on a while, by which point they've re-invented and there is dozens of new categories there. Keep an eye out for undiscovered artists and designers, who have such a great eye and can be so different to what we get so sick of seeing at shops and markets. Take anyone who is free, great for literally everyone!