It like any gadget one buys has a specific purpose....I have a go and many dies. It depends of the project I am working on if I will use it/dies or ruler/rotary cutter. If it's a lot of one cut then I wll, if just afew then no. But, I must say if I want to make my own "kit" then it certainly saves lots of time. I don't mind buying it, but you do have to shop around for the best prices!