Or did you mean actually gets used the most as in they buy it and it dosent become a clothes rack?
Yes, that's what I'm asking.
What equipment gets used the most and doesn't become a clothes rack.
I would guess squat racks are the most used. Typically people that invest the money for a decent rack and barbell set, which if purchased new could easily cost more than $2000, rarely make the decision to drop that much cash just because they think their ass is fat. I don't know of any studies on the subject but I would say that anything fairly inexpensive(under $500) purchased by untrained individuals 30+ is the most likely to end up not being used.
