Computers have never been more affordable: MSI's latest Mini-ITX motherboard features a passively cooled Celeron J1800 and a sub-$60 price tag. A quad-core version (presumably based on a Celeron J1900) will be available in February for about $70. A steal considering the robustness of these tiny SoCs.
✓ Celeron J1800 (2 cores, 2,41 GHz up to 2.58 GHz)
✓ 2 x DDR3-1333 SO-DIMM slots
✓ 2 x Serial ATA 3Gbps ports
✓ 1 x PCIe Express slot
✓ 2 x USB 3.0
✓ 4 x USB 2.0
✓ 1 x HDMI
✓ 1 x DVI
✓ 1 x VGA
✓ 1 x Ethernet port
Source: The Tech Report
Update: Official page is up.