BTW is an acronym for "by the way." We use it to point out something that is related in topic, but not a direct point... a supplemental piece of information.
Right, we understand. Just letting you know that if you say "sick of bass" to other people, they will think you don't like bass.
In my experience, there has not been a significant change between new and now for my XB500. But please know that I only have about 10 hours of listening time on them, so they're are pretty much still new.
Well, if you are sticking to a budget, then I would say go with an E5 or an E6. I prefer the E5 because of the better build quality and materials.