From the manufacturer:
Value Series Acrylic Paints like Liquitex BASICS® are formulated to offer dependable standards of performance at a more affordable cost.
Student acrylic paints such as Liquitex BASICS® are formulated with sufficient pigment to offer dependable, if not ideal working properties and use pigments that in most cases require fewer resources so that they can be milled more quickly and efficiently.
This means that Liquitex BASICS® are going to give quality results at a great price.