(disclaimer; employee of Fusion3)

I'd like to suggest you take a look at our printer, the Fusion3 F306.
The F306 prints at very high speed, while maintaining great print resolution / quality. Also, able to use a wide variety of non-proprietary materials for under $4k.

We've gotten feedback from many of our customers, who need a reliable (and durable) printer for their business or college / tech school. They wished they had just spent the money on ours right at the start, rather than have an expensive learning curve with Makerbots, Cubes, etc... and now have thousands of $'s sunk into unusable hardware.

For more information,
our site: http://fusion3design.com/
link to detailed spec sheet: http://www.fusion3design.com/wp-cont...-1.30.2015.pdf