I think RPi in this thing says it all. It screams it was built by somebody that does not know how to develop a physical product for mass market.
There are only three parts in this product that should have any significant cost to them:
* the display itself,
* the wooden enclosure,
* the packaging the product comes in,
If there are switches, potentiometers or encoders I am really partial to well working ones and these are not so cheap. It is nice to have but at least they make the product feel more expensive so it is not a total waste.
Everything else can be done dirt cheap. I don't think chinese are the best way to learn product design but they are pretty darn good at saving every last penny (or yuan in their case). I found it illuminating to study some of the devices of chinese origin (as opposed to ones that are only manufactured in China).