I believe this is a pretty good price for the Nintendo Switch. Edit: Posted from Melbourne (according to eBay page and pointed out by hollykryten) but still unsure about receipt. If you're not travelling overseas then this should be a good way to pick one up for cheap.
Using https://www.ozbargain.com.au/node/295144 as a reference for price since I really don't know much about the switch.
Don't forget to use your cashrewards for the extra bonus cashback!
Cheers
AU $495.20 vs $382.35. The difference is $112.85. You have overpaid by 30ish which you could get the game at $79.