There are multiple people that have bought trucks just for parts.
Then they realized their parts truck only needed a few things to get it up and running, and in better condition than their original truck, so they end up buying yet another parts truck to fis the first parts truck.
It's a slippery slope.
It's not just HMMWVs that a whole second truck is cheaper than the parts either. I know guys with LMTVs and other larger rigs purchased for parts.