No Rust. I'm just outside Houston TX. I've kept up with the mechanical maintenance, It's the cosmetic stuff that is starting to bother me. As an example: the driver seat needs to be reupholstered and the headlights are getting pretty cloudy. I've kept it waxed and have accumulated very few dings so the paint still looks good. I pd cash for this one in 06. I'm self employed so this truck is a business expense. I'm pretty conservative and don't feel the need to impress anybody.
I suspect that it will make sense to keep it till it's junk or I wreck it. I've had multiple close calls driving in Houston traffic over the years. Mostly people on cell phones or texting not paying attention. It sure makes them jump when you lay on the horn, they're just oblivious.
I pd right at 31K for it and could probably get close to 20K if I sell it now. Dealer's here in Houston are asking around 22-26K for similar trucks to mine. It's sure held it's value. I haven't looked yet but I suspect a comparable new replacement is well into the 50k's.