I don't want to have to keep track of charging yet another device, esp one as important and frequently used as headphones. Heck, some days I forget to plug in my phone to charge let alone headphones. Not worth the headache esp when there is another version of the device available with "infinite battery life". If some people prefer wireless and don't mind having to deal the potential inconvenience of always having it charged then more power to them... my problem is when companies try to push wireless headphones on us by taking away the 3.5mm jack.