CHINESE tubes?

Chinese tubes are quite satisfying in my opinion. Not only more affordable, but also reliable and sonically good. 
I'm using the KT88 from Shuguang and compared to other brands that I tried on the same amplifier, the results (sonically) are not much different - especially when looking at the price difference. 
On other hand, I opted to swap the pre-amplification valves (12AU7 and 12AX7) from Shuguang to Genalex Gold Lion. Not because the Chinese ones were bad, but I truly heard a nice improvement in sound quality for a small amount of money. 

I just purchased some Psvane 12AU7 and I have to say they sound very nice. Good clarity and soundstage. They have bested some expensive NOS tubes which I won't divulge lol.

Someone told me it takes 400 hour burning for kt88 treasures,  I bought these and I am not happy.  Not waiting 400 hours!

I just don't like to offend a friend that just got  a Cary 805 AE and using Chinese branded tubes?Do you think it's about savings?