The Commodore Amiga 1000, the first and most beautiful Amiga computer ever released, was -by far- the best micro of 1985; it did after all costs 1,500$. The A1000 came in an elegant case with a separate keyboard, sported 256k of RAM and -importantly- the signatures of the design team. You can find out more about it here, here and here.
What's more, US residents can grab a fully working, rather complete and in excellent condition A1000 via this Commodore Amiga 1000 auction. The computer comes with the Commodore 1080 monitor, its mouse, the original keyboard, the original manuals, all necessary leads and a ton of software, including the Workbench and Kickstart disks.