$300 is about 3 times what it should be, in my opinion. It's not much more than a fancy USB hub with audio & a NIC. USB 3.0 hubs with NICs are about $50-60, or one could easily use a regular USB 3.0 hub and attach a USB NIC, sound card, etc. Perhaps not as clean but a hell of a lot cheaper.

Even worse, the price is not really $300 - in order to use it, you'll need a thunderbolt cable which is nearly $40 (!).

There are few to no storage solutions that can benefit from thunderbolt over USB 3.0 and the whole ecosystem reeks of greed and vendor lock-in. No, thanks.