We also like to be close to the main building because we use the refillable mugs a lot. We've found the LK rooms to be a great location and it's a generally quiet area because there's no pool. We've always requested and received a room close to the main building and could be filling up our mugs in about 2 minutes after leaving our room. We stayed in Nemo one trip and while we liked it, we didn't feel the few steps it saved was worth the extra money. And the reality is, if you end up in a room by the lake in building 4, you'll have a longer walk to the main building than most of the LK suites.