I believe this is the lowest this drive has been. Works out at around $250 AUD, unless using a card with better rates.
Not the cheapest portable per gigabyte, but one must also consider the performance increase.
Please be aware, this is two 2TB drives in RAID0. This drive will be faster than other portables, but your data will be more vulnerable.
Muppet-question. Can actually the USB3 standad deliver enough power to safely feed the two hard drives installed in the enclosure?