I will start this by saying I love the bar, can't get much better than some heavy compound movements, but I often see and hear people who are so hung ho about using only barbells, yet hypertrophy is thier main goal.... Now I'm not saying that tradional barbell work isn't the meat and potatoes of a solid foundation, because it is, but I grew leaps and bounds using the Smith machine, and I'm not the only one. It amuses me when guys in my gym see me squatting 5 plates banded in the Smith machine for reps, and have the nerve to ask me why I don't just use the bar.... "Real men use the barbell" etc etc.... My first through is why don't you get bigger and stronger, as I just watched them load on 225 and do singles in the squat rack. For back training I have found that barbell is king for me, deads, rows etc etc, but for chest, shoulders, even legs I have seen alot more growth from machines than from the bar. And alot less chance of injury, which for me is the deal breaker. ISO hammer machines, squat press, Smith machine. I will not down talk the importance of the squat, but I can say it's not the only way.