Just found this deal, and while it may be delayed it’s a shuckable 6TB external for only $10 over the portable drive which is 1TB less. Not too bad for a Western Digital, but I know not the cheapest. I just find them reliable.
Shipping is delayed until right after X-Mas.
https://smile.amazon.co
WD 6TB Elements Desktop Hard Drive – USB 3.0 – WDBWLG0060HBK-NESN