If you are thinking about mostly (only?) using it for cutting scraps into strips, squares, or rectangles, would you consider something like a Stripology ruler? It's a slotted ruler for cutting strips which you can then rotate to subcut rectangles or squares. Including ironing, I can easily cut a jelly roll in well under an hour. It's ridiculous fast and I have such a blast using it every time I can. The Stripology is a little thicker than the Shape Cut, but I have the longer/shorter one so you do have to just be aware of how you're folding your fabric. Since you're mostly planning to cut scraps, it shouldn't be an issue for you.
Just a thought and would be much cheaper than an Accuquilt+dies.