Would`nt it be great if you could build those LED Cube displays without having to do all that soldering?
Why does no-one make LED`s in cubes that just plug together?
Encapsulate LED in cube with pins and sockets that mate together to form any shape or size of Cube.
I can`t see anything technically difficult about this, just needs to be mass produced in china etc.
(I know Lego make LED bricks, but they have the battery built-in)
Because the people who build led cubes are the same people who won't spend a few extra pennies for parts, as it is.
E.g. The people who buy from ebay or deal extreme and then come here for technical support.