I'm a person of habit. If it works, I'll stick with it. I have bought this wallet about 4 times in 4 years. I have both black and brown. I think brown is great for going out as I use black for work. I work at an oil refinery and have multiple IDs and the dual panes help to display them. In addition to my IDs, I keep 6 cards in it (AAA, Costco, and four CCs). For cash, I recommend no more than 10 bills folded in half. Otherwise this thin wallet will become bulky and tight. As far as longevity and repeat purchases go, refining work is messy. That's why I change them every year. When these come out I will be buying more.