Just picked up an SE/30, a PowerMac 7600 and a 15" Apple Multiscan from one of my old University lecturers. All are boxed with most of the original cables, packaging, installation media and documentation. They are not "new in box", their previous owner had just decided to keep all of the original packaging (which is nice for me). They have definitely had long and useful lives. Neither of the Macs boot (they need new hard disks, which is an easy job).

Price? Free.