They are, but just looking forward. What will you need in 5 years, or 10? I know some folks change cars as often as they change their underwear, but I tend to drive mine into the ground (or very nearly so). Will we be storing video content? If there is cloud access and I can download new albums and songs as I want to listen to them, then less storage is fine.
Yea, maybe 256 is reaching, but half that isn't exactly crazy.
Half is acceptable IMO. I'm on my computer (handling music and video files) for a living. My main drive is at 139GB free of 582 total GB of space. That's programs, dropbox, music, videos, email etc. My entire iTunes library (music, video, audiobooks) clocks in at 31 days worth of content and 49.06GB of space.
Ya, 256 is a bit much.