There are some comments here about the difficulty competing with Chinese knockoffs, but there are many small companies making high quality 3D printers, and they have good reputations: Ultimaker. Printrbot. E3D BigBox. Makergear. There are probably many others too that have been around for years but I'm not really plugged in.

Thomas Sanladerer on youtube is a good source of information, and reprap.org, if you're shopping.