I didn't know they moved their production to China.
Why did they do that.
But I don't think you should be scared of any changes in the PS2 model or quality. Sony would be hung if they tried pulling something like that, and I would help. I just bought a PS2 (4 days ago) and am extremely happy with it.
So don't hold back. I decided to wait for a price drop and what a drop it was (33%).
What system do you own now?