cnvh --box on wheels? Relatively little can go wrong? Inexpensive to repair? Not sure what you are comparing a horse trailer to --a car or motor home perhaps? But let’s take this from the bottom up: what can go wrong with a two horse bumper pull --LQ? Well, that’s another story: tires (can look brand new and still need to be replaced), hubs, brakes, axles, bearings, rims, fenders --all can be worn out, damaged, or not maintained --last trailer we bought (and we knew about this before we bought) had the brakes frozen to the hubs with rust, needed new everything --except, the axles were in good shape --that was $1500 --let’s keep going on the " few things that can go wrong and are inexpensive to fix" --wiring. Have you ever put in a new wiring harness? It is challenging and requires specialized tools and knowledge --it isn’t free to have a trailer rewired --yet sometimes that is the cheaper option than trying to find the broken wires or shorts that are keeping the system from working --and for our last trailer that had sat for 10 years in someone’s yard --that was $800 and that’s not counting the lights and fixtures that needed to be replaced with LEDs . . .and we continue --then there’s the floor, roof, windows, doors --latches and hinges, the grommets for tying and holding hay bags, the pads --and if you’ve ever tried to even find the specific window for a specific trailer make -or latch --or hinge, well, none of them are free and all require extensive research to find --or you can take out the old door/window/latch and replace with new --but often that means a little body work as you resize the hole . . .and finally, the cosmetic stuff --ever have a pad in the trailer become torn or need replacing --yep, they do wear out. Completely redoing the interior of a 2 horse bumper pull will set you back $500-800 for new pads on the walls and floor. Roof seals need to be resealed, as do window seals. I happen to be totally BLESSED to live in a community that makes its living on manufacturing and repairing trailers --there is a trailer repair shop, literally, on every corner of Elkhart County, IN --RV trailer Capital of the World and there are 3 manufacturers of horse trailers in 7 miles of my farm --Merhow, Bison, and Lakota. So when I need a part, I can just go pick one up --when I need something professionally done, it’s a no-brainer to find someone to do it. —Personally I prefer used trailers because I have the time/expertise to fix (most) what’s wrong --but it is very easy to equal the cost of a new trailer when you start repairing an old one --I know I could have purchased a NEW low end horse trailer for what I paid for my 15 year old Merhow --but I cannot afford the high quality NEW Merhow trailer --my older one is now repaired and restored --would it sell for what a NEW Merhow, no, but it works just as well –