This goes for ANY working breed that is actually expected to work at their job in real life. And they cost a LOT of money to buy, train, and maintain.

TBH it depends on the work - up until the surge in demand from the pandemic, Border Collies were super cheap in the UK because it was mostly farmers selling the extra pups they didn’t need. I’d imagine other areas have a local working breed that’s similar. That said, they are now more expensive than rescues, and require a particularly high energy lifestyle so aren’t suitable pets for most people. Most people just need something kinda friend shaped, which rescues have plenty of.