Blog vs paid channel mix

Inputs

Monthly marketing budget	$30,000
% to organic content	40%
Paid CAC (current channels)	$220
Organic CAC at maturity	$70
Organic ramp months to maturity	9
Discount rate %	12%

Supporting metrics

Organic customers (36 mo)	5,114
Paid customers (36 mo)	2,945
Blended CAC at 36 mo	$134

About this calculator

Mix wins — eventually

Pure paid acquisition is fast but expensive at scale. Pure organic is cheap but slow. The math at 36-month horizons typically favors a mix, because the organic CAC at maturity is usually 3-5x cheaper than paid.

The phases

Months 1-3: organic produces ZERO customers. All your shifted budget produces nothing in the short run.
Months 4-6: organic ramps; CAC still 2-3x higher than mature.
Months 7-12: organic CAC approaches steady-state. Mix starts winning.
Months 13-36: mix dominates. Organic compounding pays off.

Default scenario

$30k/mo budget, 40% organic ($12k) + 60% paid ($18k):

36-month organic customers: ~3,600 at avg CAC $120 (averaged ramp)
36-month paid customers: ~2,950 at $220 CAC
All-paid scenario: 4,910 customers at $220 CAC
Mix winner: 6,550 customers vs 4,910 — 33% more customers at same spend

Why founders default to all-paid

Speed: paid produces customers month 1; organic doesn't until month 4-6
Predictability: paid CAC is measurable; organic ROI uncertain
Easier to scale headcount: hiring SDRs is more legible than hiring content writers
Capital constraints: organic compounds slowly, dies fast in cash crunch

When pure paid is right

You're 18 months from profitability cliff and need customers NOW
Your category is so new there's no SEO demand to capture
You have unique paid creative IP (e.g. founder-personality LinkedIn ads at scale)
Your LTV:CAC at paid scale is comfortably > 3:1

FAQ

What's the right mix?

Depends on stage. Pre-PMF: 80% paid (you need quick fits-or-fails signal). Series A-B: 50/50. Series C+: 30% paid / 70% organic + brand. As LTV stabilizes, organic earns its keep.

Why does organic CAC eventually beat paid?

Organic content is a one-time investment with multi-year traffic. A $5k blog post that ranks for 3 years = $5k cost ÷ 36 months × monthly traffic worth. Paid clicks cost the same forever. The asset value of organic compounds; paid is rented attention.

What if my product is too new for SEO demand?

Then pure paid + thought leadership is right. SEO requires existing search demand; if no one searches your category yet, focus on category creation via founder-led content (LinkedIn, podcast appearances) + paid demand-gen. Don't bet on SEO until search volume exists.