Not really. I adopted a stray kitten which cost 0$, a couple of vet visits set me back maybe 200$ for most of his life. Cat food isn’t expensive, car toys, and the environment was easy to supply and make it interesting. Later in life he got a tumor, and regular vet visits did cost a couple of thousand bucks and he eventually had to be put to sleep. But that was the most amazing cat, who gave happiness and love to 4 people, and a kitty friend.
Some stays in Turkey do very well. However I’ve seen plenty of cats in need of medical attention (swollen limbs, covered in their own feces, etc) and some people actually harassing them. Same in Greece according to my cousin who was doing some charity work on an island to improve cats conditions.
Stray population needs to be small enough for them to do well with the help they can get from people. The best thing that Turks do for cats, is too neuter them.