Seems like a decent price considering it's an E3-1225v2 CPU.
Dell Precision T1650 Workstation Quad Xeon E3-1225v2 3.20GHz 8GB 500GB HDD DW19 | eBay
Dell Precision T1650 Workstation Quad Xeon E3-1225v2 3.20GHz 8GB 500GB HDD DW19 | eBay