Rescues are over burdened, people trying to personally "rescue" horses find themselves in over their heads, and still you see FREE HORSE to good home ads in local papers and CL.
Yep, and you also see a lot of abandoned or strayed horses, because people who can't feed their horses and can't give them away, can't afford to hire a vet and a bulldozer to put them down. I know folks who take in any horse they can, but they can't afford vet and farrier care for a dozen horses. (Not to mention that wandering horses are a dandy traffic hazard...)
Anyway, to relate it to the subject - anybody buying a large animal needs to sock away a good chunk for final disposal.