Newegg offers the Seagate Archive 8TB Serial ATA 6Gb/s 3.5" Internal Hard Drive, model no. ST8000AS0002, for $259.99. Apply coupon code "VCO2015BTS" and check out using Visa Checkout to drop it to $234.99. With free shipping that's $5 under our preorder mention from June and the lowest total price we could find by $9, outside of the mentions below. It features a 128MB cache.
A close price: Next Warehouse offers it for $236.92 with free shipping; Buy.com via Rakuten Shopping charges pennies more.