> You are already paying probably in the $10-20k / month range for per-employee salary.

If you're in the west coast US. This company appears to be italian, so the reality is more like €3k/month, and as they're a startup it might be even less. The other option is looking at it that they're spending 10% of their recurring revenue on SAAS products, which as a 3 person team seems crazy.

Because you can only play the "this is trivial compared to the employee's salary" card so many times before the numbers add up to a nontrivial sum.