Look at Advertising as an Investment
There's no better investment than advertising. Property, stocks (or crypto), putting it in the bank are inferior to return on ad spend (or commonly known as ROAS).
Your bank is offering less than 1%, so technically your money is going backwards if you factor in inflation.
Your ads can get 305% return in 14 days if you have healthy conversions and you price up front.
The only two reasons you haven't done it is that you're too ignorant to look at the value you provide, or it's not clear how much it costs to acquire a customer.
If you don't advertise. You're a fool. And if you want me to refer you to my ads consultant of choice please reach out.