You are confused. MixPanel costs $X per month. That cost only increases. Self-based solution costs $Y to build and $Z to operate. delta = $Z x n - ($Y + $Z x

You are confused. MixPanel costs $X per month. That cost only increases. Self-based solution costs $Y to build and $Z to operate. delta = $Z x n - ($Y + $Z x n) Solve for that delta.