I watched the video and I feel the same way. You get an android device that can't even do what your Android / iPhone can do. TBO, all you need to best this is to buy a flip case that looks like a TPS-L2 for your phone.
IMO, aside from being a Sony device, there isn't anything Walkman about this and most everyone already has a device in our hands/home that does what this can do and more.
I guess if you were a die hard Sony fan and wanted this for commemorative decoration and as a collectors keepsake and also didn't mind the cost and limitation for the money, it would be good piece to display for the anniversary.