Clearly! But....it is an itty bitty kitchen.....and well, *I* typically shop for butter.
You can find butter bells MUCH cheaper than that!
Others explained how they work. I do change out the water every couple days if I am not going through butter quickly. We do love having butter that smears easily on whatever we want just sitting there.
Not butter but....I had been looking for schmaltz (rendered chicken fat sometimes flavored with a hint of onion.) I use it in several recipes, but it is especially great for chopped liver. When I can find it, it is generally really expensive - Around $15 per 8 ounces (227 grams for those who do metric.)
I purchase my chicken liver from this place that raises and butchers chicken. When I went to get my chicken livers, the workers were trimming skin, etc. from the chicken parts. I inquired whether they would let me buy some of the skin they trimmed off. The answer was 'how much do you want?' They gave me a huge bag of discarded skin and fat. I was able to render it down to about 2 cups (454 grams) of golden schmaltz! They did not charge me anything and told me to give them a call anytime I wanted more skin/fat. Don't know why I did not think to do this before!