The cheapest 3D printers here that are shipped from the USA start at just $170 for a refurbished one. Plenty of models cost $250 or less. They also have many that can be shipped from China.
Close to 50 printers and a lot of accessories. The cheapest printer only costs $99 - this is a mini printer. The most expensive one is $1.299. All Monoprice brand.
There is a 3D printer category both under Electronics and under Industrial & Scientific. A search will reveal their entire selection of about 80 different printers starting at just $180 for the cheapest one. There are a few different ones priced at less than $250.