I am thinking of doing the same. The number pins I can have is based on the house we buy. With the max being 5. So I am seriously thinking of making a vpin to supplement space/money restrictions. I originally found out about it and told a friend of mine that's into arcade games about it. He wanted to build one, but before he could he got his first real pin from me. Now he is hooked and no longer cares about vpin.