Quite a lot I really like the games music because it's so calm and sweet and happy! It adds the the cuteness of the game really! The only times when I don't have the sound on are when everyone's rusging round me and I don't have any headphones, or if im listening to other music on my iPod which is kinda unlikely! I don't see why someone wouldn't want the music to be honest
I find it awkward to play without sound. XD I only have the sound off if I'm playing with the same room as my parents. Otherwise, I usually have it on medium. Even at night I have the sound on. XD
I usually have it on. The times I turn it off are when I have a headache or if I'm not in the mood to hear repetitive sped up talking if I'm in a rush to talk to villagers for whatever reason. I also turn it off usually if I'm doing something repetitive like plot resetting.
I almost never have the sound on. Usually only if I am fishing, or if I get/meet a new villager and want to hear what they sound like. I need to start using the sound now though because I really need to catch one of those stupid Mole Crickets.
Dang it, I meant to put only with headphones but I put yes instead. But yeah, I don't want to disturb others around me, so I just wear my headphones everytime I play.