As the title says, get the 1982 version and the remake both in blu-ray for less than $11
£6.99 with sendit, seems like they're still doing free delivery on most items too which makes it a quid cheaper than their sister companies Zavvi/Hut. And over $7 cheaper than amazon.
£6.99 x 1.5493 (gbp-aud) = $10.83
No idea they remade it… Looking at reviews it seems I was better off never knowing it.