SaaStr's own agent fired Marketo after 10 years, and the migration cost $14 in compute.

Jason Lemkin's post-mortem is the sharpest SaaS piece I've read this month. SaaStr's marketing agent hit Marketo API rate limits leaving roughly one usable hour of API time per day, so the agent effectively couldn't work. Combined with consecutive 12-20% annual price increases, they moved 10+ years of data to Salesforce Marketing Cloud in one week wall-clock for about $14 in agent compute plus two weeks of one employee's effort. They'd have paid $20-25K to stay. The argument that lands: API throughput and quality are now retention surfaces, because agents have no vendor relationships, no switching inertia, and portable prompts.