not the cheapest it's ever been, but still a good deal. Duplicolor don't have as many colours as Plastidip, but definitely a lot more than Armor All's old Custom Shield range.
btw, if you're looking for non-gloss clear, Armor All's version is cheaper at $10 if you can find stock near you. http://www.supercheapauto.com.au/Product/Armor-All-Custom-Sh…
how many spray cans be needed to do all four wheels?