That is pretty much what I thought. "China man make cheap, Not China man make quality". That being told to me once by a prominent Chinese businessman at dinner. They will job out anything, just as you point out. It is not exactly true though. There are some very high quality Chinese products made solely for their wealthy domestic market. So they can, but bottom line "Money talk". PBT DS keycaps simply are not going to be great quality, thin etc. Offset legends and all.