I hope their use continues to trickle down to even more affordable amps as George predicted (good call). It seems they rather quickly went from only being used in the $50K Technics to these new AGD monos at $15K/pair. Still too steep for me but I can wait..
Yes EPC (who are the GaN developers) are looking for it to be used also in portable devices, if so that will cause a quite a kerfuffle also.
Looking forward to how all this progresses
Cheers George