Newegg offers the ASRock M8 Mini-ITX Barebones Gaming PC in Storm Black for $199.99. Pad your order over $200, then checkout with Visa Checkout and apply coupon code "VCO2015BTS" to knock it to $174.99. With free shipping (and minus padding), that's $25 below our May mention and the lowest total price we've seen. (It's the best we could find now by $88.) It features a Mini-ITX Z87-M8 motherboard, 450-watt power supply, PCI Express x16 VGA card holder, magnetic closure, and design via collaboration with BMW. Deal ends August 31.
Note that the coupon can only be used once per account.