When you can personalize it, of course, you save money by not having to make it accomodate all osrts of heights. I'm so green in weightlifting and construction, that I wasn't sure where I'd want all the holes, or if I could just build a couple "levels/pillars" for squats, presses, and bench. Couple that with my handy mans lack of confidence he could build something that would hold 4000 lbs for under $300, it was an easy decision to go with a pre built one. But if I had your skill or careless level of risk as the case may be , I'd do it.
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