It does equal more expensive. Maybe not more expensive than Pepsi, but more expensive nonetheless. Even if you assume you'll return 100% of them, which you won

It does equal more expensive. Maybe not more expensive than Pepsi, but more expensive nonetheless. Even if you assume you'll return 100% of them, which you won't, you have to value the time spent doing so. And when you don't return 100%, which will be the case for most people, you eat a fee.