I see 3 major advantages in a crowd-developped 3d printer :
-skills are present in our community
-this device is not very expensive (and some of us have a little bit less money since last months …)
-it’s a technical device.
Another reason :
I’m very curious to see what kind of devices a 2000 members’ community can create with 2000 3d printers linked together…maybe change the way to make some goods of everyday life?
My personal 2 cents …