They still buy 10 times more tech than they produce, the bot collective that is. So that is an upward pressure, without them the tech prices would be lower. Same goes for food but the other way around. rainbow bots are self-sufficient and 1 farmer bot produce about 3 times more surplus bushel than 1 of each other bot(techer, indy, casher) consume.

They do affect every market, even though they might not drive it in FFA as they do in express and to a much smaller degree in alliance.