At a bargain and Bargain-basement

Bargain-basement and at a bargain are semantically related in cheap topic. In some cases you can use "Bargain-basement" instead an adjective phrase "At a bargain", when it comes to topics like inexpensive.

Bargain-basement adjective - Costing little.

At a bargain and bargain-basement are semantically related in cheap topic. You can use "At a bargain" instead an adjective phrase "Bargain-basement", if it concerns topics such as inexpensive.