Another theory might be the branding they started with the cylindrical Mac Pro which is also this sort of gloss black. So perhaps we'll see more products with this gloss applied?
Either way, I've always ended up regretting getting a lower capacity model. I only upgrade every 3-4 years and I am definitely looking forward to 128GB or more so I don't have to juggle apps, audio, and pictures constantly. So for me that's the starting price. Steep but I don't buy phones so often so it's not my biggest budget worry.