As one of its daily deals, Best Buy via eBay offers the Western Digital 6TB My Book USB 3.0 External Desktop Hard Drive, model no. WDBBGB0060HBKSN, for $144.99 with free shipping. That's $4 under our mention from last week and the least expensive 6TB USB 3.0 hard drive we've seen. (It's the best price now by $4.) It features 256-bit AES hardware encryption. Deal ends today.