$140 each + shipping. mITX boards with dual LAN and LGA1155. Might be good for some used core i3's.
Here's the link - Intel S1200KP BBS1200KP Server Board M ITX 1155 DDR3 New Bulk Packaging | eBay
Here's the link - Intel S1200KP BBS1200KP Server Board M ITX 1155 DDR3 New Bulk Packaging | eBay