Does GoDaddy buy domains?

Excuse me, I was wondering if you could clarify something for me. I've been looking into purchasing a domain name for my new business, and I've heard that GoDaddy is a popular choice for this. However, I'm a bit unsure if they actually buy domains themselves or if they just facilitate the process of registering and managing them. Could you please explain how GoDaddy works in terms of domain purchases? I'd really appreciate your help with this.