Understand your true cost to acquire a member across every channel and optimize spend for efficiency.

The CPA Formula

Cost Per Acquisition (CPA) is the total marketing spend divided by the number of new members acquired in the same period.

CPA = Total Marketing Spend ÷ New Members Acquired

Example: $10,000 spend → 20 new members = $500 CPA

Why CPA Alone Isn't Enough

CPA only makes sense when measured against member Lifetime Value (LTV). A $600 CPA sounds expensive until you realize the average member pays $4,800/year and stays 3+ years. Always evaluate CPA relative to LTV to understand true profitability.

$500

Typical CPA

$5,400

Avg. Annual Member Revenue

10.8x

First-Year ROI on Acquisition

CPA by Channel

Not all channels cost the same. Here are realistic benchmarks for boat clubs:

Channel Avg. CPA Range Notes

Member Referrals $50–$150 Lowest cost, highest quality leads

Google Search Ads $300–$700 High intent, strong close rate

Facebook / Instagram $400–$900 Wider funnel, needs nurture

Open Houses / Events $200–$500 High conversion, labor-intensive

CTV / Streaming $600–$1,200 Brand building, harder to attribute

Spend Optimization

Once you know your CPA by channel, shift budget toward the channels with the lowest CPA and highest member quality. Key optimization levers:

• Track the source of every new member in your CRM — ask on every intake form

• Calculate CPA monthly, not just annually, to catch underperforming campaigns early

• Weight referral leads separately — they close faster and retain longer

• Pause high-CPA campaigns during off-season; reallocate to retention activities

• A/B test landing pages to improve lead conversion rate and lower effective CPA