There's also the problem in that they need to take into account floor loading. They're not going to tell a customer upgrading from an older machine to a new one

There's also the problem in that they need to take into account floor loading. They're not going to tell a customer upgrading from an older machine to a new one that, "oh, by the way, the rack weighs twice what it used to, so you'll need to upgrade your floor while you're at it." Especially important for raised floors.