3D Printers for under $1000

Have you ever seen a 3D Printer in action? These things are amazing considering that you can buy them for under $1000. This makes the 3D printer affordable even for the average home user. Just think, no more racing down the shop to buy a replacement part for an appliance simply whack the broken piece in the printer and make another one. This technology has apparently been around for ten or more years however only recently have they become affordable to the average consumer. I wonder if I can get some compatible rolls of plastic for these things? I might do some experimenting with whipper snipper chord, If it works I'll make a fortune !