Simple latency arb strategies are totally an arms race now, with very high barriers to entry. That does not mean however that latency becomes unimportant - if

Simple latency arb strategies are totally an arms race now, with very high barriers to entry. That does not mean however that latency becomes unimportant - if you are a market maker you're essentially playing the same game in reverse - you want to move your quotes out of the way to avoid getting your lunch eaten by those aggressors.