Dr. Mark Nan Tu

No one can.

I brought a fake Wilson K90 for $25USD in Shenzhen. The seller even throw in a Wilson bag which should worth $5 alone. I brought my first Wilson racket back in 1993 and it was a real Prostaff classical 85. (the one used by tennis legend Pete Sampras). I only hit with it a few times before I went to the US and basically retired from the sports. I started playing tennis again in Aug. 2008. I brought a Wilson K95. I know both my Prostaff and K95 are the real racket as they all cost me around 190USD.
So now, I have three rackets, a real Prostaff, a real K95 and a fake K90.

I have played with fake k90 for a while. Here is what I found:
1: It is impossible to tell the difference from the appearance. The graphics are excellent, identical as the real K90.
2: It weights only 260 gram (real K90 weights around 320gram for the Asian edition).
3: It uses graphite material but is different than the real K90.

Surprisingly, this racket is very playable. It actually feels like a classical (80s) racket. I think that the racket uses a classical graphite material, similar to those 80s racket.

I personally believe that the racket is well worth the $25 USD I paid for. I even use it in real matches.

If I can demo it, I would buy the racket for $50 even it says: Milson or whatever on it. I started with Wilson as the sellers in those sports stores kept pushing Wilson to me (perhaps with high margin for themselves).

If a real Wilson is make in China, I am very confident that the same factory can make Milson with the same quality if not better. These factories do not use their own names as they do not have the marketing budget to build a brand name as they are busy making the 5% margin to do OEM for Wilson. Everyone got to live. I guess.

However, I expect the situation to change in the next 10-15 years. In the next 10 years, I will not care if my racket is a Wilson or a Milson. It will a good thing for all the consumers as the Wilson and Milson will all sell for $50-$100.