2-piece balls (sometimes called recreational or game-improvement balls), can be purchased from $15 to $25 per dozen, whereas tour-level balls will set you back anywhere from $30 to $50 per dozen.
The advantage of tour-level golf balls is the combination of control, distance, and feel, three core attributes sought by professionals and top amateurs. The disadvantage is that some Tour-level balls will feel harsh or "rock-like" to players with slower swing speeds.
The advantage of 2-piece balls is maximum distance for beginning golfers and for players with lower swing speeds. The disadvantage is reduced spin and control on iron shots and reduced feel in the short game.