Made in China still does not justify their cost. Not that I'm against Made in China, if it's made in US I would think its an OK cost, and that is based purely on labor cost, not quality.
There are many reasons for pricing, true, but there is no true reason why a product that uses less material cost the same as another product that uses more material. The techniques involved are not complicated, the material used is not high-tech and difficult to produce.
ADA products are funny, in the way that are at most better than similar products by a fraction, yet they are priced several times more expensive than their competitors. Maybe the biggest thing about ADA is the ADA tag.
Take that away and they are no different than similar products, they are almost similar to Apple, people just buy Apple for that little logo of a bitten apple not for quality, performance and hardware. It's easy to find a phone/tablet better than Apple in every aspect since Jobs died.