I initially bought a cheap set of Vigmas and those balls wore out quite quickly, especially the cue ball. By wear out, I mean lost their luster. When balls lose their luster, their friction increases and their throw increases. In my pool room a few of the players there have their own sets of Super Pros and play with these balls heavily every day. These sets are over 10 years old, and I was present for a polishing session and they returned to like new condition after the cleaning. Even the house set of Aramith standard balls have been also used heavily every day for over 30 years and still didnt look as worn as my cheap set. I've since sold that set of Vigmas and bought a set of Aramith Tournament balls. Best purchase I've made. Don't settle for anything other than Aramith.