Refills are free at BWV, as well. You can get all of the above-mentioned drinks, plus lemonade and hot chocolate. If you're there for a week or more, it's well worth it, IMHO. (I've never drank so much lemonade in my life! LOL) There's a refillable mugs chart on either this website or wdwig.com that lists all of the resorts and the cost of each resort's mug and subsequent refills.
--cath