Trailers are worthless
This biggest issue is that you need huge area to turn around. It is easy to get blocked in by other drivers where you can't get out. You will have to learn a new set of driving skills because the rear end of the truck will have a different pivot point from pulling a trailer. I have a 6500 series diesel rollback and I love it. I can load a dead car in less than 10 miniutes and be leaving.