Think about what size quilt block you work with the most. Then match the shapes to that finished size block. I have the 8,9, and 12 inch cubes or the equal dies. The cubes are limited to cutting 6 quantity of each shape. You can also find the corresponding individual die that cuts 2 or more of the shapes.
Example the 2 1/2 inch die that cuts 9 at a time. You get 54 squares with one pass. The strip dies work well for cutting multiple squares
Last year the sale before Thanksgiving was the best offer. I don't know if that will hold for this year or not..