NNN.cn is great in its potentiality,
definitely,to be worth of money on in China,.CN since 2003,.COM.CN since1997
to some extent,NNN.ch I would not buy them at all cos just a waste of money tho .CH since 1996 IMO
NNN.cn would be very valuable but not on a par with .com as .cn effectively stay in China under controll of cnnic whereas for Chinese buyers .com creates the assett outside of China. .com.cn not nearly as valuable.
There have been some very good sales of .cn in general and it has the potential to be one of the most valuable cctld particularly as interest and investment in ngtld comes crashing down and starts ups emerge and more companies move in to China.
I don't think we can compare .CN and .CH values together.
China has a well-established market for number names than any other country in the world has.