For my money, the Yihua 936 is the best soldering station you can get for $50 or less. Above that, you might as well spring for the Hakko FX-888D ($90), or a used Hakko 936 ($75).
The Yihua is definitely a "deal" at $15 plus shipping (also $15), so the total shipped to the US has always been $30. I still think it's far better than the Weller WLC-100, which typically runs $50.