>And once captchas are introduced it's over. I wouldn't be surprised if stuff like captchas would be implemented more into websites to stop scrapers for good.

lol, not really. Captcha solving services like DeathByCaptcha and AntiCaptcha cost like $1.90 per 1,000 successfully solved captchas. They have APIs and you can easily implement them into your existing code in a few lines.

tl;dr = captchas do nothing and they also do nothing to stop scrapers. its a non-issue.

source: I scrape a lot of things and defeat captchas daily.