Essay · About a 15 minute read

The Cost of Cloud, a Trillion Dollar Paradox

Sarah Wang and Martin Casado · Andreessen Horowitz (a16z) Free Intermediate

The margin leak most bootstrapped founders never see coming is their own infrastructure bill, and this is the essay that put a number on it: across 50 public software companies, committed cloud spend averaged about half of cost of revenue. It reframes cloud from a convenience into a line item that quietly decides whether you are running a healthy business or a break-even one. Read it as a starting point for asking where your COGS actually goes, not as a case to flee the cloud on day one.

  • Cloud can silently become 50 percent or more of your cost of revenue, so a great top-line business can still run on thin margins.
  • The cheapest, most flexible choice early on (on-demand cloud) becomes the most expensive one at scale, and the switch happens gradually enough that nobody notices.
  • Treat infrastructure spend as a first-class metric alongside revenue, because it compounds the same way your growth does.
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The question it answers

  1. What are the most common ways bootstrapped founders accidentally kill their own margins?

Read with it

  1. Every one-off custom feature you say yes to is margin you spend building something one customer wants and everyone else pays to... Medium Article · About a 7 minute read How we avoid building the wrong product as a bootstrap startup Clement Bataille
  2. The infrastructure margin leak usually shows up as a bill that crept up while you were shipping, so the fix is seeing it before... vantage.sh Tool · Self-serve setup, roughly 30 minutes Vantage Vantage
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