When we first started buying the mugs, I thought, next year I will bring them back and not buy new ones, but when it came time, I couldn't. We just buy new ones every year. For one, I hate having to pack them, and for two, my conscience won't let me do it. We get our money's worth, we usually stay between 8 and 10 days and use the mugs every single day and several times a day. I can understand that big families may not like the added expense, but I also think it depends on how many times you actually buy your drinks, you will definitely save anyway if you buy alot of drinks, you may as well have a mug that you can keep as a souvineer, and I must add, they are very durable, we use ours all the time and they haven't faded or anything.