Revenue Cloud is API-first and Agentforce-ready but is still being built release by release, and deployments are harder today. Salesforce CPQ is mature and well-understood. The decision turns on timeline and appetite for shipping on a platform that is still filling in.
Treat it as end-of-sale rather than end-of-life reasoning: existing CPQ implementations are not about to stop working, so the question is what you would be starting today and how long you expect to run it. Map your must-have configuration behaviours against what Revenue Cloud supports at the current release before committing.
Every claim above comes from work LeanScale published. These are the sources.