I use the Duraglove for bows up to about 55#, and the Big Shot in buffalo leather for bows heavier than that. The Big Shot is similar to the Duraglove in that it is leather covered with nylon or cordura, but everything is heavier duty than the Duraglove. I like the Duraglove for bows where I can use it, since I get a better feeling of the string, but I need a little more support for heavier poundage bows.
Most people don't report wearing out Duragloves very fast, if at all. I wonder if you're having some kind of problem getting off the string, and it is dragging too much on the fingertips of your glove?
P.S. the only thing I know of that gets better with age is wine.