Tutoring-center owners may judge an SEO provider from short-term activity, but a weekly spend-to-call comparison can omit the value and cost structure of an enrollment relationship.
A tutoring relationship can continue beyond a single transaction. The source illustrates this with two, three, or even four years and also notes possible sibling referrals and public reviews. Those examples should not be treated as guaranteed retention or referral behavior. The useful point is that the center needs a consistent value definition before comparing acquisition spend.
Define student lifetime value (LTV) from your own enrollment and revenue records, then decide whether the model uses revenue, contribution margin, or another clearly named value. Keep additional subjects or test preparation in the calculation only when the data actually includes them.
The source's example assumes 18 months at $400/month, creating $7,200 of revenue, then compares that with an SEO engagement costing $1,500/month and fewer than one additional student per quarter. Preserve those values as scenario arithmetic only. They do not establish a normal retention period, a normal SEO fee, or a guaranteed break-even point.
The decision boundary is straightforward: SEO should be evaluated from measured acquisition evidence, realistic student economics, and total program cost. Market conditions, competition, site health, intake quality, capacity, and attribution uncertainty can all change the result.