I've purchased 3 of these over the past few months for specific purposes (NAS, HTPC, Data recovery PC) and they're awesome. Last couple of boards cost me closer to $140AUD delivered (as they're not available in Australia).
The J3455B-ITX is available in Australia (for ~$130) but it lacks the extra 2 SATA ports and the M.2 slot. The only benefit the B model has is the PCIe x16 (although x2 electrically connected) slot vs the x1 slot in this board.
Great little boards - only 10W power utilisation and h265 decoding.
I'm not sure if there's free delivery on everything or not - but theres probably some other good deals on there.