Machines, in contrast, are much more limited, with most devices allowing only one exercise apiece. Barbells and dumbbells are relatively inexpensive. The expense climbs when adding benches, racks, and other accessories, but even then, the cost is far less than the thousands of dollars that some high-tech machines cost. Multiple-station machines designed for home use are an option. Some cheaper machines, though, may be poor in quality, a bit clunky, and in need of considerable upkeep.
Resistance training requires a lot of desire and motivation.
Lifting a loaded barbell may offer a greater sense of accomplishment than working against a given resistance on a machine. A good many strength coaches believe that the gains derived from free weights transfer better to sports like football that require strength. What helps, they say, is that lifting heavy barbells promotes explosive bursts of power. Strength-training machines tend to control movements and to discourage explosiveness. Like explosiveness, this also helps in transferring strength from the gym to athletics.