[ubermonkey]

Mileage varies, obviously.

I've worn these for multiple cross-country and transatlantic flights, and have not noticed them being too heavy for comfort, but that's definitely gonna be a personal thing.

>which means they're constantly out of power when you want to use them.

I have not found this to be a serious problem, assuming you put them in the case. Even out of the case, though, they keep a charge a while -- which I unfortunately know b/c I lost my case on a plane a while back.

I have the original model. I haven't seen a huge need to upgrade so far -- mine still work great, have excellent battery life, and so replacing them isn't on my radar. Honestly there's a real chance mine will hang on long enough be the last remaining Lightning-connector thing in our house.