How has web scraping helped you?

I'm rather new to all this. When researching i stumble across web scraping rather often. How has web scraping helped you improve?

• Has it had a high impact?
• How often do you think you use it?
• What are you looking for when you're scraping and is it a lot of manual labour? (like scraping the same page every day?)
• Anything else?

Where should i start?

Thanks for your input!