Those horses are all between 15.3 & 16.3. How would that avoid joint issues? Most eventers & jumpers that I've known, or even just TBs in general are in that height range, & joint issues are quite common, especially if the horse was started too early or worked too hard. My old 16.1hh TB gelding that I leased was fantastic, but he had to have hock injections & had foot issues, especially after he got new shoes. I was able to compete him until he was 19, & then he was used as a lesson horse until he was put down at 22 (he technically would have been 100% fine to continue as a lower-level lesson horse or just retired out to pasture, but there was drama between the owner - who hadn't come out to see him in the entire 7 years I had him - & my trainer, so they put him down
I really don't care what breed or colour the horse is. I just want them to be sound, intelligent, & have enough heart & talent for the sport.
My friend has just told me about a 5yr old at her barn that the owner is only asking $1k for. I believe he's a TB, but I'm not positive. I'll probably be going to see him on Friday after I go to see Riley.