I suspect the originals x3 will have a good resale market. wolfson has a fan base
I'm one of those fans. Ditched the X5. Keeping my original X3 though. Never liked the scroll wheel and if they release an X5 II without one I would probably grab one down the track but it looks like FIIO have a thing for it despite it's cheap and nasty feel.
Had I known that it would be as disappointing as it was I would have gone down the DX90 path and would still have it.