Really wanted to go this year. However, we had to prepare for a 3 Star visit on the project we are working on.
Still not sold on the ground drones yet. Concept is brilliant, execution so far has been somewhat disappointing. Everything I have seen used on the ground so far has been beset by reliability, communication and power issues. Its all good and well bringing all this new tech. None of the soloutions that I have seen demonstarted so far is seriously tackling the power/charging, logistics and maintenance burden.
Nice shiny on paper, but problematic, loud and just a hassle to work around in practice. I'm sure they will work out the balance in time.