I was fond of the rounded-edge design, personally. I could envision them as being stackable and sold in packs of 3, 6, 12, whatever. It could be made easily enough using a computer-driven lathe and a single piece of wood, plastic or metal, or even made out of injection-molded plastic. The new design looks more traditional, but at the same time less interesting.
If you do decide to stick with the new, add a cross-bar along the top of the stand for more stability of the deck resting in it, and make the leg collapsible (sort of like a small ladder) for storage/packaging convenience.
Basically, as I'm seeing the new version, you're making a miniature easel/photo stand, built a touch beefier to hold the weight/bulk of a deck of cards. Perhaps to me that's why I liked version one so much - it's quirky, it's different, it has a cool factor to it. The second design looks like something Wal-Mart is already selling in the photo frames aisle.