In my role I work across various segments of transport so need to have a grasp of most things so that I can sell the concept to customers. Others specialise in a particular area, safety, driving, 3PL, last-mile etcetera, and will probably know it better than I do, more in depth.
Good call on that fifth-wheel, that's exactly what has happened. It's a brand new prime mover. Kenworth K200.
I don't know what the situation is Stateside, but I imagine it to be similar to here.
Also...I heard yesterday, as East-West rail is on the blink (due to flooding) that B-doubles are moving from Sydney and Melbourne to Perth at the cost of $35,000 to the customer. That's huge bro. (Usually about $12,000-$16,000) But, no one can get singles (semi-trailers) now because they're all going for the big bucks to Perth as B-dubs. Bonkers man. It's throwing transport into chaos on the eastern seaboard.
(On the blink: Faulty, broken, kaput, not working.)