utroz :
Plus TB has copper cables and optical cables which will confuse the joe six pack consumer.
TB should have been copper for power and MMF for data to avoid the escalating cable cost curve and the likely need to upgrade cables with every new iteration.
Even USB which was supposed to be low-cost became considerably more complex with USB3 that added two dedicated half-duplex pairs for high-speed bidirectional data instead of adding only one dedicated to one direction while reusing the existing one for the other direction.
Gotta love how Intel's decision to make USB1/2 cables a few pennies cheaper to manufacture than FireWire by using a single half-duplex pair ended up making them more expensive with USB3. Of course, Intel does not care anymore since FireWire (the only notable mainstream non-Intel IO standard since the serial and parallel ports) is practically history and all remaining mainstream interconnects are Intel-backed.
Also ironic is how much Thunderbolt looks like a souped-up FireWire if you look at the fundamental principles... practically the same thing but using DP/PCIe bridges instead of SCSI controllers.