Thought I'd pose this inquiry to this community. Is it really needed to have 4 or 5 extruders on a 3d printer. From what I see, you really don't need more than 2 at anytime for 99% of prints you do. Anyone out there have a 4 or 5 extruder 3D printer that uses more than 2 of those extruders frequently? I'm just beginning to see more and more 3d printers come out with 3, 4, and 5 extruders, which I feel is unneeded.