Perhaps but I find it hard to believe that you would be running so many high bandwidth devices at once.Yes we are actually with eHDDs that is. USB is great for mice, keyboards and such but for data transfers it sucks like no other. With USB its one hub that controls all the ports. If you connect 1 flash drive, you get the maximum speed. But add more and each one slows down.
Sata on the other hand is a per channel setup which means each sata channel gets the full 3Gbps/6Gbps. My eSATA dock gives my WD Black transfer rates of 150-200MB/s while the best my USB 3.0 eHDD gets is 100MB/s. Thunderbolt as well is the same way. Each TB port is its own channel allowing each one to give 10Gbps bidirectional or 20Gbps on the newest one.
I want it to drop in price of course but USB sucks for data transfers compared to eSATA/TB. Its just not efficient.