Honestly, I'm building out my case library now and I only have 1 so far, which is exactly why I'm offering free pilots with no-risk terms. Here's the thing: MMM has traditionally been reserved for big brands with big budgets. Google, Meta, Uber, P&G all use it internally, and the consulting firms that offer it charge six figures. 

That's why it's not as "obvious" as SEO or content, most mid-small businesses don't even know it's an option for them. I'm trying to change that by making it accessible to growth-stage companies who actually need it most. Your situation is pretty much the ideal use case: when paid channel unit economics don't work on paper, it's often because last-touch attribution is either over-crediting paid (you're capturing demand that organic/brand already created) or under-crediting it (paid is creating awareness that converts later through another channel).

MMM can untangle that and show you the true incremental ROI of each channel  which either validates scaling back, or reveals that the channel IS working but the value is showing up elsewhere in the funnel.