> But for instance I'm getting some good deals where is better to get a discount on the nominal price than getting the cashback and so on. Getting a discounted

> But for instance I'm getting some good deals where is better to get a discount on the nominal price than getting the cashback and so on. Getting a discounted cash price is almost always the better option. They always offer "installments, zero interest" deals which make no economic sense. If they don't offer a discount, the best option is to max out the zero interest installments on the credit card. Interest rates are 15% per year right now, if they don't offer at least 15% discount it's better to pay in 12 installments and invest the money.