Too expensive for a "936" clone.
The now discontinued original Hakko 936 was something around $80 to $90. Clones start at $30, while $40 to $50 are common. The $72 for that clone is ridicules.
The quality of the clones are typically very similar. They do work, aren't too great, and you can get spare tips from many of the clone manufacturers or use original Hakko tips.