NT1 is actually ok for a single driver. As their marketing director put it, it wasn't meant for audiophiles, but for consumers who wanted a taste of CIEM. For $250, it would probably be better to reshell an IEM you already have.
Where are you getting your CIEM from in Korea? Most distributors, like Sound Cat offer free impressions if you order a CIEM through them. An audiologist visit would cost under $30 from my experience in Korea. I got mine done for free by Hidition(based near Seoul University). But it's really not that expensive in Korea.
I wonder if it's that hard to fit something like snapdragon 400 into a $1000 DAP. Even my watch has a 400, and it's tiny. It can't be too hard, but it seems like all companies choose to put the slowest processors and UIs.
I don't have too much issues with the Jr. The UI is bit laggy, but it's still usable.
I'm working on a review btw. It should get published soon hopefully. I've been rather busy recently.
Well, those behind the neck iems are supposed to be around your neck the whole time. It's interesting. People outside of Korea don't seem to get it. It became a huge thing in Korea. It's really comfortable around your neck, so you keep them on your neck. You get call notifications on your iem with a vibration, and it's like a really comfortable and easy to use. So the portability really isn't an issue. They were not designed to be placed in pockets. But it does sound...
It's more expensive to make, and it just sound somewhat logical. More=Better, and companies marketed that way. Well, that works for BAs that lack extension, only to a very limited degree. Like a single BA won't extend well. But after 2 Way crossover, there should be no issue with treble extension.