Interesting! That’s actually significantly more than I would have expected.

It's $750 per DOF. Which is indeed quite expensive. Especially considering that this is AliExpress.

I have a fully articulated quadruped here and it cost like $15 per DOF (excluding the control board), which is pretty much the price of a small servo. I bet if someone wanted to, they could make a humanoid like this for under $1000. The problem is that there's no market because control algorithms are already pretty wonky for 4+ legs. Two legs is just too unstable, even if you just want to ply around with it.

It looks like this is the servo they used:

http://en.robotis.com/shop_en/item.php?it_id=902-0124-000

If that's true than it is insane. These things pull almost three amps at max torque. Now assume you need at least 14 of those. You probably never see them running for more than 20s in the video because they just run out of battery.

These are unbearable cute, but 14K is a bit too much for the novelty. Serious roboticists, you can have my turn.