Hey Brian,
I am always looking for a way to extend the life of my cards. I have tried other clips and they were ok but I have yet to find one that really does the job. I work in a magic shop, have cards in my hands most of the day, and go through them like they're free. I literally wash my hands before I pick them up in an effort to keep them clean, but moisture is of course always going to be an issue and trying to keep them in good shape is tough even with a clip.
I can get maybe a few days out of a deck but thats really about it. There have also been times I have opened one in the morning and threw it out at the end of the day. I'm curious to see how the compressor does.
What is the cost per unit?
Thanks