We are up to our 5th generation of soldering station. We have switching over to the "Yihua 937", it's a Chinese clone of a "Hakko 936", with the pin connector M/F reversed on the iron and base unit.
The weight of the solder station effects the shipping cost, and the to-our-door cost. We found HobbyKing
the cheapest supplier, and they have US warehouses. The name of the product on HobbyKings website is "Soldering Station Adjustable Heat Range with US Plug
" We have paid between $25 and $35 (to the door) for the irons we have purchased.