Manual vs Electric Breast pump

Hi all! FTM here. How do you know which pump is suitable? I’m planning to get the electric breast pump but WHAT IF i can’t produce my own milk for my baby? Will it be a waste of money to get the electric one? My concern right now. If i were to get manual and i can provide breast milk to baby, i will eventually get the electric one too. So what is your best advice out there parents?