Agreeing with the others, I feel that it's a great thing to install an EGC with EMT runs.
Just makes the whole thing a lot more solid for ground faults.
BTW, on sign circuits - especially ones for neon signs, it would be something that really needs to be installed, simply for the center tap grounded secondary on neon transformers.
The newer ones I have seen have GFP, which looks like it will not function correctly without a solid ground bond [solid being lowest voltage].
Just my thoughts.
Scott " 35 " Thompson
Just Say NO To Green Eggs And Ham!