You would think so, but the prices keep going up and the bitrate keeps going down. Some of that is up to codec and encoding improvements, but I think a lot of it is just that they know they can get away with it.

If you'd have asked me 20 years to bet on whether streaming or shiny disks would be producing better quality audio/video in 20 years my money would NOT have been on disks but here we are. Ye Olden Plastic Disk's are still kicking streaming's butt even though I have 2.5Gbps fiber now.