How about AU$246.28 (plus postage) for a fully
assembled, ready-to-go machine?
The TinyBoy Mini 3D Printer is a fully assembled machine designed by Parker Leung of Tiny Boy https://github.com/HKCOTA/TinyBoy as an open design easy to use 3D printer.The Mini Fabrikator by TinyBoy was designed around a concept that by 2016 every student should have the opportunity to have a 3D printer on their desk.
The TinyBoy is available on-line from HobbyKing for only AU$246.28 (at the time of writing): http://www.hobbyking.com/hobbyking/store/__80708__Mini_Fabrikator_3D_Printer_by_Tiny_Boy_Transparent_AU_230V.html
(Postage is extra, and ranges from AU$82 to AU$169 for delivery to Australia.)
The machine is only 150 mm x 150 mm x 220 mm, and the build volume is fairly small (80 mm x 80 mm x 80 mm) so it can only make small components.- but still, at that price, why wouldn't you buy one?