Probably everyone reading HN in the last 8 years has seen the excellent video by Monty / xiph.org specifically addressing Neil Young and sample rates/bit rates (for delivery, 44.1kHz/16-bit is really truly all you need), but one thing very appreciated with this website’s audio streaming is the option of uncompressed audio, which is much more significant than any high-sample-rate file would be. And they even have a 320kbps fallback! Finally even Neil Young can see the benefit of being 12x more data efficient for 99.98% of the perceived quality.
40 minutes of streaming music at 4 Mbps is 1.2GB, so up to $12 for me.
Maybe the user can afford it, but the streaming company has margins to keep.