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Build vs Buy — SaaS / B2B Tech
Weigh SaaS subscriptions against a custom build for SaaS / B2B Tech — see the multi-year total cost of ownership and which path wins.
What this means for SaaS / B2B Tech
- CAC keeps creeping up while net retention is flat — the Rule of 40 number nobody wants to share with the board.
- Product, sales, and CS each define an 'active customer' differently; the boardroom NRR number is reconciled by hand.
- Every PM is shipping an 'AI feature' but nobody can tell you which one moved retention.
Where it pays to act
- AI features inside the product where retention is the actual KPI — not just a marketing checkbox.
- Sales and CS copilots that summarize accounts, draft follow-ups, and surface next-best-action from the CRM.
Adjust the inputs to match your SaaS / B2B Tech context.
Total cost of ownership
SaaS total (3yr)
₹19.9 L
Custom build total
₹21.8 L
Difference (cheaper to buy)
₹1.89 L
Breakeven
—
What this means
A hybrid path fits best.
For SaaS / B2B Tech, the gap is ₹1.89 L over 3 years — close enough that a hybrid approach (buy core, build differentiating layers) often wins.
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Build vs buy — summary
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