The incentives offered by credit cards are the most profitable sort of rewards that customers may get for doing nothing more than spending money on products they were going to purchase anyhow. The benefits you get from using your credit card might be compared to a cash back rebate or a return on your purchases.
This return on expenditure might be anywhere from 0% (no incentives) to 2% (best cash back card) to well over 3% (most generous cashback card). When you redeem your airline miles for high-value (and high-demand) business class trips, you really have the potential to obtain returns of up to 10% if you are extremely excellent at redeeming your points. However, this calls for a significant amount of hard work and expertise.