That's why i wanna build Chinese Frame.
That is probably the difference, I have already built a Chinese frame a DengFu FM066SL ten years ago.
I am looking for rim brake aero frame to last a few years. So I am looking at the top end, hence Giant Propel SL, Scott Foil RC etc.
An Aeroad would work, but they are rare (and expensive) in Australia.
Prices locally:
2015 Merida Reacto 7000 frame with brakes 300EUR (would like the next model)
Cheap Chinese rim brake aero frame + shipping and taxes 450EUR
2017 Scott Foil frame 600EUR (XL I need M/L)
Velobuild VB-R218 with integrated handlebar + shipping and taxes 660EUR
2017 Giant Propel SL complete bike with Ultegra + training wheels 900EUR (ISP cut 20mm short for me)
On my search I am finding out most people do not ride 10,000+km a year ;-) Most do a lot less and rarely in the rain. I can spot crash damage, so will avoid frames/bikes that have been in crashes (unlike the ones I already own)
Still buying second hand has it risks as does buying a Chinese frame, particularly the cheaper ones.
For me I see more value buying a five year old premium rim braked aero frame that has probably done less than 10,000km than a new frame from China.