I’m lazy enough and a frequent enough soft drink & beer consumer that by the time I take it in, it’s at least 10€, but can be 20€ or more. I have also gotten over 100€ but that was cheating, it was from previous year’s summer solstice celebrations. And like the commenter above you, it’s the same price for me, 10 cents a bottle or can. Mostly because we apparently live in the same country.