The latency in the network has more to do with the networking equipment than the transmission speed. Also routing can often cause longer return times and droppe

The latency in the network has more to do with the networking equipment than the transmission speed. Also routing can often cause longer return times and dropped packets. Paying the high price ensures that their transactions don't leave the building and all of the equipment in the middle is optimised for that type of operation. The only other solution would be 10 miles of dedicated fibre through a metropolitan area. Not a cheap solution.