Why do people pay for HubSpot's content hub?

I’ve never used HubSpot’s AI content hub, but I see a lot of people talking about it. From a reddit post I noticed that it can remix content from blogs to social posts to emails, adjust tone, and generate photos... But isn’t this stuff ChatGPT can already do? (Exactly what I found people asking in that reddit post) Why do people still pay for HubSpot’s AI? I know it’s a good product. The features look smooth and well-integrated. I’m just curious—what’s the main reason people buy it? What’s the mindset behind paying for it instead of using ChatGPT?