I don’t disagree with the gist of these arguments. Practical necessity: no. But not because playing above the 12th fret is rare. It’s not, even for an intermediate student. Even if only 1% of the time, it is often the penultimate 1%. I have a slightly raised fretboard. It came as a feature on the guitar that I bought for other reasons not because it had a raised fretboard. I like the leverage it allows on those rare high scale passages. As I have mentioned before, the view is different which causes some visual misinformation finding the 12fret, but you get used to that, like guitars without dots. I think having a cutaway has the same issue plus you lose the physical sense of the 12 fret position against the body of the guitar. I say I think because I’ve never played one. Except when shredding the tele. Get input from others who’ve actually played one. Your teacher likes it. Play one yourself for a while. Everything has its ads and disads. Having said that, I would spend the extra portion of your $2000 on a better top or tuners or a good case rather than on the elevated fredboard.
All this time I thought I was making music; it was making me.
2015 Steve Ganz "Solidarity"
1980 Dauphin D30
1962 Fender pre-CBS P-Bass
National Triolian Uke ca.1930
Almost as many fly rods as guitars