2000 customers @ $39/month is almost $1M/year.

If your software can handle 2000 customers, you can worry about scalability once the $1M/year is flowing in.

Scalability doesn’t get you cutomers. First have customers, then worry about scalability. The order matters.

Consider that:

- In 2001, Amazon had 25 million customers.

- In the last 90 days of that year, it sold over $1B of stuff.

And it did all this with a monolithic website and a handful of relational databases.

Sources: https://queue.acm.org/detail.cfm?id=1142065, https://ir.aboutamazon.com/files/doc_financials/annual/2001annualreport.pdf