I’m being impartial here, if you have any comments or disagree with anything feel free to comment and I’ll correct / update the post.
Also, this is meant to cover home printers only.
DLP projector + resin
Industry standard, good support, strong community
A bit expensive IMO. (up to $2000)
Good printer based on reprap, started in kickstarter
Great price ($500-$700)
Easy to build
Great price (claimed to cost $300)
Traditional reprap printer based on the Mendel
Probably the easiest to build from all repraps ( but still not that easy)
Simple to customize with many improvements available online.
Price greatly depends on where you buy the parts and your own build choices..
Prusa Mendel assembly instructions: http://garyhodgson.com/reprap/prusa-mendel-visual-instructions/
Open source list of models: thingiverse.com (by Makerbot)