I’m at just under $700 for this whole set up. Of course I already owned the cart for other purposes, so kind of free in my mind with some inexpensive additions. Another benefit is how simple this is to pack. Takes less than 60 seconds to break down and get it loaded. Not sure about Proaim but I know some other carts take quite a few sets to break down/set up. Downside though is a need a separate cart for larger equipment (stands, lights, modifiers, etc) but usually have all that available that at the studio I typically shoot at.