They are very low end trailers. Here, where I live, $5k will get you a brand new 2010, 3H slant load, very basic trailer. IMO this is not bad, but where we live it is also very hot, technically a desert, and these brand new trailers had rust in almost every seam, nook, and cranny imaginable. Overall they looked like trailers that would last for a few good years and then you'd start having problems.
"Horses don’t have hard mouths, they have hard, stiff bodies. The softer you can get the horse through his body, the softer he will be in your hands." Clinton Anderson