I don't know how it works with delivery ordering, but in person they pull out three and let you choose. As to whether it's worth it, I guess that depends on what you're buying. I pay the extra with revolvers so that I can get the best lockup and bore, not so much the best finish. I got a Model 64 a couple of months ago that way that looks like it was thrown into a gravel pile, but was mechanically like new. The other two were pretty, but not nearly as tight. For surplus military stuff, I don't think I'd bother unless it was something I wanted as a collector and not a shooter.