To convert to discs or not convert? That is the question!

Just opinions so here's mine... I've go a complete 73 power disc brake suspension to put under my 67 fish. About 7 years ago when I bought the fish I said to myself... Someday it will need brake work of some sort. I will not spend one dime on the drum brakes. When it does need linings, master cylinder, anything, the drums come out and the discs go in.
Hasn't happened yet. I guess I don't put enough miles on the car.