PamOKW. I agree that it doesn't sound resonable to get drink refills for life for $10. But, the first time I purchased a mug was at BC, the CM at Beaches and Creme told me that they were refillable for life, at the resturants at Beach Club and Yacht Club. I must have sounded really stupid because, as you say that didn't sound right for $10 so I then asked "are you saying if I bring this cup back on my next trip, I can still get refills"? She looked at me like I was stupid and said "that is what refills for life means". I noticed later the mugs were also available in the room honor bar and they had a sticker on the outside wrap that said "Lifetime Refills".
I was at AKL this past April and I saw the mugs at the register of the Food Court so I picked one up and said these are refillable for life right? She said, "yes, they are refillable for life". I even confirmed this later while there was a CM standing by the drink machine and the person in front of me was filling up an All Stars Mug, so I loudly asked "These are refillible for life at this resort only right? She said yes, they are refillable for life only at the resort you purchase them at", and never said anything to the person in front of me.
I agree wholeheartedly with OhioMinne, when I was getting really annoyed with all the people filling mugs that were not from the resort they were at, my husband said to me, Disney is not going to say anything to upset them, why are you getting upset?