Not that cheap downunder :( think I paid about $20-25ea in the early days; local pens shop asking $35ish I think...
How do you find them?
I didn't bother getting the set, I prefer multiples of the narrower ones & no use for the "highlighter"
currently got 3 red & 1 orange inked up.
I play with the Parallel rainbow ink pack, ink colour morphing is a cute party trick. The Parallel special ink feels thicker & smoother than normal FP ink; they recommend you don't use the Parallel carts in FPs.