3DMonstr T-Rex-24
First of all, I'm very biased: I designed it, and my company builds it. So I'll just stay on specifics, rather than lavish praise on the machine, no matter how much I think it may deserve it :-)
It's big. Really big. 600mm x 600mm x 600mm build volume (or 8 cubic feet). Yet it's easy to transport, as the gantry can be lifted from the table in under 30 seconds, and each of the two parts can be carried by one person. Each part easily fits through a standard office door.
It has 4 extruders, so its possible to print in multiple colors, or multiple materials, or to speed up the print by carefully choosing how to apply different nozzle sizes to different parts of the model (for example: small nozzle for fine exterior detail and large nozzle for fast infills).
It's built like a tank, so it will still be running when most of the wobble-bots have shaken themselves to bits.
And finally, it's the least expensive way to get to 8 cubic foot build volume.