Prioritizing collecting cards of the same suit in order to form runs is crucial when constructing a Rummy deck. Since runs are typically harder to form than sets, players can gainrummy games list a lot of advantage by amassing a solid collection of suited cards. High-value cards, like aces & face cards, should also be collected because they can be useful for creating sets and scoring points. Even so, if you hold onto high-value cards for an extended period of time & they are not part of a set or run, you run the risk of them becoming liabilities.
