Re: What's the Advantage of an expensive Powerlifting barbell?
Typically the bar rating of #1500 is static load. When the bar is in motion the forces can multiple hence big loads 500+ could bend them especially if dropped in a bad spot etc.
The knurl is key, cheapo bars will fall out of your hands when deadlifting. I was at a globo for vacation and the knurl did nothing and my sweaty hands struggled with pulls I normally have no issue with.
I really like pressing and squatting with the Texas Power Bar and Rouge Westside Bar. They are solid and the knurl helps lock the bar in your hands and on your back for squats.