Because your team will actually use it, and because it's where the AI agents live now. We build on HubSpot as the platform of action: the home of your revenue system's data, signals, agents, and reporting. It doesn't have to be your only system. HubSpot Marketing Hub has native Salesforce integration, and running HubSpot before, alongside, or on top of Salesforce is a common US pattern. Anything HubSpot can't do runs as custom agents in your own Azure tenant.