I've bought gates, corral panels, and round bale feeders off those trucks. There are two grades of them, and here we refer to the heavy gates as bull gates. The lighter weight gates, regardless of where they come from, won't stand up to a lot of abuse. However, I've had good luck with the heavier ones. Tarter is one of the companies here who make and sell gates and such. I was buying them off a gate truck that will take your order, then deliver it when they come through your area. Then, a local farm store started carrying them, and they will sell "seconds", which only have a scratch on the paint or a little dent, for a nice discount. That way I can buy a heavy gate for what a lighter one would cost.