IMO, you dont need multiple bars or even expensive bars if your not an elite lifter. Markos and gyms need multiple bars anyway so I understand they can have a variety, but for home, just make sure the bar can hold the weight you intend to use it for. At home I have two Pendlay Nexgen OL bars. We use them on all lifts, and they are great. Every now and then I bring out the Iron Edge cheapie (bent after 4 weeks use), to remind me how nice the Pendlays are.