The ironic thing about "hi-fi" is that, in large measure, many of the listening devices environment aren't. There is ***NOTHING*** remotely hi-fi about a mp3 played through "ear buds" smaller than a eurocent.
BTW, I voted for option 3 in my own poll here. I don't think cassette portastudios will be made again, but I think there is enough of a market for repair parts which for the most part aren't that sophisticated (belts other rubber parts etc.) and cassette heads don't wear as fast apparenlty as their open reel counterparts. Even then, I suspect that somebody will license the designs from Tascam or whomever and make replacements at some point. Which I think will also be true of the open reel multi-tracks. It may not make economic sense to mfg an entire machine, (although I would bet that if U2 wants a 2" 24 track U2 gets a 2" 24 track) the price point indicated in the other thread for an offshore based machine is roughly what one cost in 1972 if adjusted only for inflation (i'm not an economist i just play on e on tv)) it certainly could be economic to license and mfg replacement parts. The big question is will the "pro-sumer" narrow gauge market be as supported?